Complete nonsense, current ease of the game aside, a game is designed with level scaling for people who want to continue with the game world long after the main quest arc is finished, but don't want a walk in the park; quite the opposite of a casual who will play, finish the arc, and move on. Level scaling ensures there is always a challenge somewhere, you cannot glitch your way to level cap and walk over everything in game.
Sorry but complete nonsense is what you say. And you know why?
Play for example Gothic 3 (svcks in many things but it got that thing right) and see how scaled areas, dungeons etc work while you are able to explore at least 70% of the map early in the game. Game still poses a challenge at the end because there is plenty of room for high level monsters to lurk. There are plenty of areas from which you can start, and when you level up it's only natural that you decimate opponents that once made your life harder.
Or play Oblivion with Obscuro's mod and see that a modder could make it challenging while completely removing that svcky level scaling that poor game had when it was released.
And there are many more...
I don't understand how people would like for example novice spells from when they started the game, doing the same damage as master spells to the same enemies when they get to level 50. Do they like the effects or something. Because in essence only the effects change their destructiveness is the same since the same enemies have gotten stronger. And yes, atm in my game, i want to go to a bandit camp and anihilate it with ease because i am level 35, already slayed 10 dragons. And after that i want to go to some daedric ruin and get beaten to a pulp.
Scaling does not mean challenge - it's silly saying such a thing and proves you haven't been playing any rpgs until now. Scaling takes away from immersion, rp and feeling of progression.
That's how rpgs worked since the dawn of time. If you like scaling so much you can also play a static action game with no levels at all. Why bother pressing that level up button?
But anyhow if the developers wanted to do this anyway for one reason or another they could at least omit non-combat skills from scaling so that they are beneficial to raise, for everyone to play the role they want without feeling punished by the game.