I can't think of a single game that manages to have enemies correspond to your level rather than area or story progression actually contribute to the game. It just makes trying to get better gear ultimately a pointless task because the enemies get strong at the same rate so you might as well stay weak.
One of the best satisfactions I've ever had in games was going back to an area I've struggled in and just mopping the floor of the enemies there. I don't like becoming a god at the end of a game and still have to worry about a normal enemy being a bullet sponge and being able to kill me.
Exactly. I love the moment in metroidvania games where I have to pick up something from like the first area and the strong enemy from the early game just gets shredded instantly