I watched the replay of the games we did last night, noticed a few things. The first thing I want to say though is that you say "my reversal timing is poor" but you are also playing a character point whose best reversal option is a slow normal with 1 hit of armor, and PW isn't known for strong reversals either. Alpha counter into beat extend might be something to consider, but even with that you are playing a team that does not have (relatively) many options to get out of pressure (imo). With that out of the way:
-The pushblock timing is definitely a thing I noticed, I don't think I had a single time I went for tick throw on BB and it DIDN'T work. There were also a few times where it seemed like you just kinda stopped blocking so I'm guessing that was a failed pushblock and you got hit in backdash startup.
-Practice your midscreen robo combo, you never completed it in any games and I'm pretty sure delay j.lp mid combo isn't a reset you were going for lol.
-You upback a lot. Some good advice I got from sage is if you're reading throw then jump forward and normal instead of upbacking (and if you aren't reading throw then upbacking is probably going to lose to whatever's coming)
-You didn't call assist when BB was on point at all. This is a habit I had trouble breaking as well because I was so used to BB just being my last character, but your oki game could be a lot better if you used assists. Also, play oki with BB it's really good.
-You mashed air reversal with PW basically every chance you got, I dunno if it was just because I kept falling for it earlier in the set and it was a read or if it's just a bad habit because later I got a lot of burst baits with double off.
-You went for armor baits w/ PW a bit too often, especially later in the set after you saw I wasn't really mashing anything but you kept trying them and it just lost you pressure. A good practice is noting in the first few games what resets are working against your opponent and what resets aren't and adjusting accordingly.
-also you went for wakeup throw a LOT w/ BB and I don't think it ever worked out, you got pretty raw-tag happy too though that might just have been panicking.
I don't know how to play 2/3 of your team so I can't give too much advice on them, I would say definitely get some robo combos/resets down because you didn't really do much when you got a hit, and of course if I touched robo she was basically dead. You didn't really zone at all with her either, I would watch
@fenster (because he's the best robo I know of) although he also uses brass assist for zoning, but he does a lot of stuff that might help you. Ending a combo with s.hk c.hk is good too (but you have to be able to get to the end of the combo first of course). Choosing your assist is something you could work on too, you would do stuff like upback call PW which didn't really do anything at all for you.
PW like you said is clearly your best character, your play with her seemed pretty solid, I don't have really any neutral advice since I don't play her but you probably could have used your armored air normal (j.hp?) more since that's really strong vs Filia.
BB...I would ask peanuts for BB neutral advice because he's better at it than me but don't be afraid to be more agressive against opponents below you with j.lk, you basically just did jump back j.mp and sometimes cymbals. BB has a REALLY good air throw, use it more. Especially against Filia I don't think you should have lost that MU since BB's hardest matchups IMO are people who can get above him and Filia can't do it at all, j.lk and airthrow would have been good there, cymbals are obviously great at stalling offense but be careful using them at point blank.
We talked a bit about it last night but again when you play the team for real not just having robo point to practice robo I would definitely do pw/robo/BB. "shitty on incoming" is VERY relative since most all incoming setups nowadays everyone has to guess against, pw doesn't have much over robo in that respect.
EDIT: I posted this before watching the last game but that last game actually you did a MUCH better job with the zoning game, if your execution with robo was better I would have lost that game 100%. Something else to consider in the last game is that robo/bb is MUCH better than vice versa (especially since if you get down to robo last character you've basically already lost if I have the life lead) so if your team order gets messed up and you have the chance to fix it (which you did, you had a chance to do a dhc that you didn't take) you probably should.