I'm just telling you what I've discovered from conversations with the devs. I have no input on what they choose to be concerned about and what dont. I know that what I described is what ive been told when discussing things like increasing stamina loss on block and increasing stamina anymore.
I do think there is a pretty big difference though. Increasing the stamina loss based on output affects
every new player in every game. A new player doesnt run into a skilled or even moderately skilled grappler everytime they play. The complex controls could be a concern but plenty of fights on a lower level can be won simply by using basic strikes and an occasional overhand or high kick. New fans arent all that interested in "learning the meta" and the ones are can find Youtube and forums like this to help with that.
I know the game you want. I'm not that confident you are ever going to get it because EA isnt just concerned about players like you and I dont think they are convinced that all of your suggested changes will benefit the large number of players.
I hope I'm wrong but I dont think I am.