To be honest, the amount you can acquire doesn't so much bother me when it comes to them bringing back the frags. What does irritate me a little is the fact that they didn't reset it from 0, so even with the packs coming back, I was only able to buy a single one. Yeah I was one of the few who managed to make Sakura 5* from the first day and Sasuke at least up to 4*, but doesn't it sort of defeat the purpose to bring back the event if you're just going to continue off from where you redeemed before? I don't know, maybe it's just me.