They didn't add anything cept inconvenience, what's there to comment about.
Um... I respectfully disagree. I've seen plenty of instances as a THF75 where I would be picking on Mandragora for skillup, and they'd land Sleep Flower without much difficulty. I usually had to wait for it to wear off, because that took less time than waiting for it to successfully hit me.
There are plenty of similar instances that I'm sure others can recount. It may not be a major, game-breaking thing, but it was an annoyance, and I'm glad it's fixed.
And to Treat Staff warpers, Dia always lands anyway.