I'm going to have to disagree with this. I do not know why you believe creatures scale with you, but they do not. Only a few scale with the player, most are fixed.
Oblivion's leveling system introduces stronger foes every time a player ranks up. At level 1, you're going to see goblins, but at level 10, you'll see goblin berserkers, and very few (if any) goblins.
Even these are capped, though. At level 25, everything the game has to throw at you is now there, and you will continue to get stronger.
If every creature actually scaled with the player, mudcrabs would take longer to defeat. I can now punch them, once, and they drop.
I also don't agree the leveling system is broken. While the game can be difficult at times, smart play wins over brute force every time. If I can't beat that mountain lion, I'm running, not standing there trying to take it out with 25+ arrows (like I did in my first game). Now, when I see one, 4 shots and they're down. No way is this possible if they scaled with me.
It's like the troll in Skyrim on the way to HH for the first time. Ask how many people tried to kill it, and watch the number of "Y" replies. Me, when I noticed it didn't drop as easy as the bear in Helgen, I ran!
I ain't no fool.