Same in Oblivion.
Sort of, +10 player level isn't the same as a hardcoded level 20.
Oblivion was a lot more fun playing with OOO when you could be walkign down a road at level 2 and suddenly come face to face with a minotaur king. Ooops.
Suddenly running into a high-level creature out of the blue is ridiculous, it just means you die and reload. It's pointless. There should at least be a warning that there are high-level creatures around, like in Gothic 1/2 and FO:NV, where there are deathclaws not far from the starting area.