I’m asking the community: how can organic difficulty level be achieved?
let’s get a bit more detailed here!
making your own players at hand/controller behave worse or making the opponent AI less error prone are the current tools used, if Im correct.
how could this be changed? Let’s assume the teams in a video game do exactly play their tactics like in real life, and 6er dropping back to defend

, what are the real life values that make Barnsley stand out for a day or a 2 week streak for example and how could this be translated into a video game?
I think thast's the main flaw behind difficulty levels as a concept to be honest. If I'm playing as Barcelona against Barnsley I'm going to do better and win naturally, for that not to happen, and for me to have a real challenge even in these circumstances, the game is gonna have to make up for the difference in the teams' quality somehow, either by making mine worse, which is something most find annoying since it feels like it's taking control away from the player, or making the CPU better artificially, either increasing their stats or having them do plays they normally wouldn't be able to do, in this case the complaint is that "Every team plays like Barcelona.", so I don't really see a solution for the harder settings, it's always going to feel cheap, one way or another.
I really wish they'd add a neutral setting alongside the traditional difficulty settings, not as in medium difficulty, but truly neutral, as in the only thing that counts regarding how the CPU plays is the team's stats, so if I'm playing as Barcelona against Barnsley I'll have a comfortable time, but in the opposite scenario I'll have a genuine test, because strong teams will play very well and weaker teams not so much.
Let's be real: people won't like to be forced to play manual. The feedback would be overwhelmingly negative.
I agree, and honestly, as much as I love FUMA, it's how I play pretty much any football game now, I don't see why anyone should be forced to play in this setting, I wouldn't like if a game forced me to play on full assisted, for example. I can see this argument being made for competitive online, but even then all of those competitive players are under equal circumstances, so it's still fair, and in casual online play there's matchmaking options.
I know that getting matches online against someone that also plays on FUMA is tricky, so I guess an argument could be made to at least making assisted settings less assisted overall, I agree with that, but especially when we're talking about offline play, it's everyone's own business what settings they play on, so in that case the more settings you have the better it is for everyone.