Just a quick question and maybe we can brainstorm more possiblities but why is it that casters have a cast bar and a gcd.

I understand that all classes have this and the cast bar was added on top but why?

My other question is would it be possible to remove? I don't know FF code or engine to the point of questioning this but I am curious. If they can I think they should but if they can't well that explains alot more but still cast times just feels dumb when a gcd is still stopping you from the next cast.

Note this is just for educational purposes I'm not attacking SE design or your favorite class.