Ex moves are now more expensive tho, you only get three Ex moves for one bar of Super. In IV it was four Ex to a super.
The best system was 3's, where each super had different bar lengths and some could hold more than one super, but in this game every character has only one super. 3s only disadvantage was that the cost of an ex move is less clear, but it is undeniable cheaper most of the time. Of course, maybe the idea is to make Ex moves less common and better too.
Maybe after a while we will get an update with a new super move for everyone, and maybe those supers will be better and cost 4 ex moves. Or worse and cost two ex bars. The V-bar already has different costs for everyone.
Don't really see a comeback to characters holding more than one super bar in SFV tho.
Re: SFxT: that game is basically gaming jesus. It died for Capcom's DLC sins so we can have a SFV with a more rational DLC.
No KOs with chip damage is easily, EASILY the best design decision in the game.