Strongly disagree. The game goes from fun time Anime hijinks to mass sacrifice to summon a dark god, war orphans discussing the moral implications of time travel, and personal sacrifice vs the good of the world. As for motivation, let's take it a character at a time.
Well, as for the sacrifice, I think it's that it (presumably?) worked that was weird (and that's a bit of the general weirdness of the end game). I actually liked a bit of creep-factor from that since it was a nice end-result of the creeping sense of dread they were building over time with the constant Grima and Grimleal foreshadowing they had been doing throughout the game.
That and the personal sacrifice thing aren't really out of place with a "fun" straight forward adventure. I mean look at OT Star Wars: not exactly deep entertainment, mostly swashbuckling fun, but it has its share of both levity, very dark moments (an entire planet is destroyed in the first half of the first episode! It's pretty much genocide!), and grander themes about morality and such. Not that Awakening is as well executed as Star Wars, but it's cut from the same cloth tonally and I feel that part of the game works.
I don't want to get too deep into defending a subpar story buuuuut...
Chroms's motivation for the first bit is 'man, I hate Plegia and love my sister, but my sister's dumb war policy won't let me invade Plegia'. After she 'died', his motivation was ostensibly to carry on her sisters memory, which he does a hell of a job of, after joining an unrelated war and routing Valm'a entire army because some French guy he kinda knew told him so.
Eh, as I remember, he hated what Plegia was doing but didn't really
want to fight. He basically ends up doing it out of necessity and through character development comes to accept himself as less soft then his sister and willing to do what needs to be done, but not an asshole warmonger like his father.
But we can all agree Valm was stupid as hell in every regard.
The only villain whose motivation even kinda makes sense is Walhart, who wants to unite Valm to wipe out Plegia. None of the Grimleal make sense, their entire religion is about killing themselves to summon a dark god to blow up the planet. Even if you assume that the citizenry were taught a different version, which is the only way that makes any kind of sense, Validar still has nothing. Grimia just wants to destroy everyyhing, for no reason other than we need an apocalyptic threat.
Believe it or not, Validar is actually the best one to me. Indoctrinated into a cult since birth, he ultimately just wants a "better" existence for his child, albeit in the most twisted way possible. Would be cooler in a better executed story, but as is, he's better to me then Wallhart who's problem is that he has no connection to the protaganist's and doesn't get any kind of characterization till AFTER he's dead and out of the story.
Otherwise I don't have a problem with Grima and Grimleal, conceptually. Grimleal is a classic psycho cult, and makes about as much sense as most real life psycho cults, presumably they thought they'd get some afterlife reward out of it. Grima is CthulhuSatan and there to give a little bit of dread and greater scope to the game. All fine conceptually, and would work in this kind of straight forward story (as opposed to Fates where Garon fundamentally fucks the whole point of the story) , it's just the execution that's the problem.
I will say I do like how they were foreshadowed frequently and given a sense of building dread (similar to the constantly encroaching zombie/monster apocalypse in Sacred Stones). Just not happy with the pay off.
The game is also full of ass-pulls. Basilio is alive, despite the fact he got crit'd for 80. Despite the fact that Robin's dumbass plan worked perfectly because Robin is always right, Grimia can just summon themself, completely negating the need for anything in the game. Gangrel is alive, and willing to ally with the family that he hates most. Walhart is alive, and willing to join with the people who crushed his dream. Yen'fey is alive because lol outrealms. Emmyrn is still alive, because l, just... Jesus Christ, it's so dumb. Robin is still alive, because thus games writing is awful.
Aside from maybe Basilio which I think kind of works as a "slight changes effect the whole timeline" type of thing (partially, Robin's "plan" is still bad*), I agree with the rest.
*What I hate most about it is that it breaks the whole logic of the game in that the player avatar does A LOT OF STUFF that the actual player is totally unaware of. I could appreciate it if the idea was that Robin becomes a separate entity from the player through character development over time, but I highly doubt they were going for something like that.
Grima summoning himself was so bad, yes. You can tell how
rushed the whole game had become by that point. They needed you to fight the final boss but they had written themselves into a corner, heh. Game should have ended with Validar's death.
As for everyone else being alive, like I said the game is improved a lot if you pretend all the spot pass stuff is non-canon.
I can see where your coming from and I mostly agree. To me Awakening represents a lot of good ideas and then kinda shits the bed midway through. First "arc" is actually really good IMO, feels like classic "iconic" FE with a lighter tone (which was a nice breath of fresh air for me, after coming to it from a ton of ultra grim dark games heh). But after that it gets filled with pacing issues, bad plot points, deus ex machina's, out of character moments, an entire "filler" arc, etc. Fates to me is the same but much more extreme: the first 5
chapters are interesting and then after that it takes an incredibly fast nose dive.