Rekkas move you FORWARD. You do Rekka 1, are -something, then if you do Rekka 2 you are at same distance to the opponent (he got pushed back a bit, you moved forward) or even closer than before and likely even more negative on block.
Useless???????? It's unbelievably good and no mindgame at all, that's what I'm getting at.
Normally if you block something like say a Devil Horns, the opponent has the option to supercancel that during its recovery as a 'frametrap' to keep you from punishing them.
Reward: [You were trying to punish] He doesn't get punished, and does damage to you
Risk: [You were blocking] He wasted a meter
Eliza can do the same thing, except she doesn't need to spend a meter (no risk) and can chain twice in a way that even if you blocked both of them, you're now pushed so far back that it's actually tedious to punish the DP
Same thing with random midrange M.DP chained into H on block