Shadow of War does exactly what I'm saying it does. There are leaders around every Orc tribe. Some leaders will summon other Orcs.
They do adjust to your button mashing. The Champions on up do. It will say "Enemy Adapted" and I can no longer dodge them or vault over their heads in a single battle.
I looked at TLOU 1 in grounded mode you mention and it doesn't seem like nothing special to me. Definitely not as advanced as Nemesis. MGSV just has extra sensitive hearing. That's not enough to claim a good AI. None of the enemies in MGSV or TLOU 2 have the complexity like Nemesis has.
This is not a subjective opinion, it's literally a known fact when comparing aspects of the various AI systems to other games.
I've completed shadow of Mordor and shadow of war. The enemy AI is not that good, and you can pretty much button mash your way through the game. Compare that to randomised pathing, AI dynamically flanking you, etc. You are free to disagree if you want, but don't claim it as a fact. And extra sensitive hearing in the AI was not the only thing I mentioned.