As someone who played EA almost exclusively with a party of 8, up until the patches became a problem, literally the only issue I had was the ridiculous hoops of starting a bogus multi-player game and save game editing that it required to get there. Once the game started, it was loads of fun with constant party interaction.
All I want is an easy way to mod party size up front. That’s it. No impact to anyone else’s game. And for the uninitiated party size is literally a single integer database entry. Not rocket science folks. This will not bust the games budget.