Ali act has its perks, but disadvantages as well. The ufc is the premier organization for mma. If the Ali act were to cover mma, the ufc couldn’t have exclusive rights to fighters and prevent them for fighting for another promotion. You could have actual world titles.
However, it could be worse. Boxing is all about padding stats, giving out fake belts, you can have 10 heavyweight champs and they would never unify the belt. The same scheduled, regimented and routine of the ufc is a part of what makes it so great. You have a list of guys in each division , ranked accordingly(mostly) and you have a system in place. Boxing does not. There is many more
To a fighter, maybe it would benefit them
But as a viewer and a fan, I don’t want it