Look. I love the games where there is no scaling like Gothic or Divine Divinity for example. I love clearing the map and exploration despite some limitations.
It's just if there is a choice between inevitable bumping into low leveled monsters when you're op already or scaled ones i would prefer scaling.
It's like famous red herring "Democracy is the worst form of Government…”
Your preferences are all fine and dandy, but it doesn't change the fact that the entire point of having an open world is for the player to be able to explore, break the sequence, meet something that kicks his butt, farm on easier stuff to kick its butt in return, escape from a gigachad enemy to get a powerful item and all that jazz. You can have acceptable as well as absolutely disgusting implementations of scaling, but scaling pretty much always works directly against all those ideas.
There are lots of ways to mitigate getting op spoiling the game. Make combat meaty and cool so massacring weak enemies feels satisfying, make combat deadly so that even weak enemies have a way to be dangerous or a drain on your resources and so on. Basically, design your game instead of going for lazy cop outs like "everything scales hurrrr".
