Kuja is the best tragic villain in final fantasy you all need to LEARN and REPENT.
I'll give you that. At least Golbez was able to live to repent his ways.
Also I don't like the way it looks like he plays. He was much more floaty and regal in the PSP games. This whole Arcade Dissidia looks like a big mistake to me.
Are you sure we're watching the same trailer? From what I've seen, he not only looks as floaty and regal as he ever was, Dissidia Arcade's 3v3 metagame looks like it was completely built around Kuja's playstyle in higher levels of play in the PSP games, especially with the addition of WD (While Dashing) Bravery attacks. Because of Kuja's unique mobility while performing attacks, he was one of the first characters that players realized had little use of the chase mechanic, and so much of competitive Dissidia evolved with ways around playing the one-dimensional guessing game and scoring more guaranteed damage.
The assist system from 012 would naturally take things to a step in the right direction, evolving the gameplay to a point where the chase mechanic is hardly needed, only solid defense and quick reactions. From a wall rush, assists are always guaranteed as a followup, and depending on the assist's attack, it's possible for the point character to score even more damage.
Naturally, Dissidia Arcade is an evolution of this style of gameplay, except now, team synergy and solid co-op skills are the key to victory, and the chase mechanic is completely removed. It may look chaotic from a spectator's perspective, but once you've got an understanding about the summon system, the EX Skill system, and a good team to work with, the game is very exciting to play. Besides, it wouldn't have lasted this long if the gameplay was a total convoluted mess, no matter how many characters you threw in it.
Even so, I can completely understand why some would prefer the 1v1 gameplay to return. People miss landing that satisfying cinematic EX Burst or turning the tide over with the EX Revenge breaker. People miss landing that perfect assist from a wall rush and getting that Mahvel vibe from following it up into something devastating. Perhaps if there's enough demand for it, TN will look into it in the console version, if they haven't already.
Either way, I wouldn't knock on Dissidia Arcade's gameplay until you try it out for yourself or try to understand it fully. YouTube users like Trueblade Seeker (who is pretty much the hypeman of the Dissidia community at this point) and Leif 3GHP do an excellent job breaking it all down.