My thoughts exactly.
My opinions on this topic are so well rehearsed (Dynamic Difficulty and Evolution) here and on the Ticket that I won’t bore you with them again, except to say that the lack of proper ‘evolution in response to player tactics’ as promised in the original selling points of this game is a genuine disappointment.
Still haven’t finished the game yet - work (coupled with a prolonged sulk after a particularly brutal Lair Assault) have got in the way.