Well, considering the alternative, which is what's happening RIGHT NOW, it probably wouldn't have been impractical at all in the grand scheme of things.
I guess my main complaint is the time spent introducing characters like Saldeath and Sadie feels wasted if they aren't gable to do anything.
Well, Minotauros at least took a combined attack from 4 main characters to put him down.
Oh, that reminds me, I don't remember Luffy shrinking after he used 3rd Gear to down that Demon Guard...