Extremely unprofessional
I've seen the professionals, and i'm not impressed
Funniest thing is that people generally don't hate aura at all in anime.
One Piece has become so effect heavy that at times you can't even see the line work.
I think sometimes it is very artistic, especially when done well like with Garp and Kuzan's better scenes, but when the effects are so wild and out of control that you can't even see the animation anymore, of course people are going to complain.
It's so fucking hard to tell what's happening in Luffy versus Kaido once Gear 5 happens, whereas Goku versus Frieza is so clean and easy to follow.