All this bar talk confused me until I read it was quickslot bars on the previous page.
Didn't seem too bad with one bar in the lvl 15 trial, only going to 2 at the very end of it. Maybe later that may be different though, but with so many useless abilities, I wonder.
Anyways, I definitely wont be paying just to access a quickslot bar, heh. Especially moddable as the HUD is I expect a mod for that anyway if it really becomes bothersome... silly limitations.