That's because the game seems not to have enemy scaling. I think, NWN didn't have also, but maybe here the concept is less strict and more open, due to the nature of being an open world. That might attract some players, but not all. In a way, you've to play more carefully and not engage in all battles.
Also, Skyrim is less story driven than all Bioware games, and this force the non linearity in the game.
It makes sense. I haven't, yet,played much, 12 hours I think. But things are more streamlined in terms of character construction. So probably there isn't much diversity like you can find in some RPG's. This reminds me a lot the "Dragon Knight Saga".