A big issue is that the GC covers policies that should really be at the federation level. Somehow a lot of internal policy stuff like how a society is structured is handled galaxy wide. Which makes no sense and punishes empires merely for having certain ideologies rather than what they do. If certain policies applied to federations instead, the GC could deal with external things and actions such as galactic war, war crimes, slavery, environmental issues, etc.The Galactic Community is implemented incredibly poorly
It would make federations more interesting rather than having gamey levels that add just more percentage modifiers. And you could have competing power blocks with actually different ideologies.
But I can see why they didn't want to duplicate the whole voting system