If, upon leaving the game prologue (prisoner escapes) and we have no perks means both Mr. Terror who is going to use the sword and Mitzy the Barmaid who has never held one are just as smart s each other, just as agile, just as intelligent, etc. I'm not saying the same result cannot be reached but it is painting people with the exact same brush leaving out all sense. A line from the Incredibles went like - if everone is exceptional - no one is. One cannot play as an einstein who learns magic as einstein doesn't exist - hes just as smart as theguy in the next cell who was the garbage collector in town and was thrown in prison because he stole something.
How is this at all different from the past games? Besides, you're only talking about the beginning of the game too. If anything the perks go against the point you're trying to make. Since the unmodded game limits you to fifty perks, characters will be far more different at level 50 than they would be in Oblivion or Morrowind.