Another issue I have is that on Larians website, it says that once we pick a team, thats it, locked in after act 1. I'm against this.
I may be able to deal with 4 people if I didnt get locked into one party. I'd like to be able to swap, and have different teams for different situation.
Indeed. If they do go through with the (terrible) idea to lock in the team after act 1, then the 4 people group limitation will be even worse.