YES to Federation cloaking. With all due respect, it's pretty naive to think they wouldn't have it and use it regularly by now. They have it, they use it. Not everyone will agree, but that's just how it is, so please adapt, it's not going back to them not having it. We'll only continue to see more Fed ships with it now in the game.
How about adapting to what you have and quit asking for more?
There are things called game mechanics and balance. Trying to combine them with Star Trek canon in this game is a waste of time.
I say no to fed cloaks. They have enough to play with as it is!