I think Bleak Falls Barrow was a mistake. Cool dungeon, fun to play, but putting it next to Riverwood and then making it critical to progressing the plot (namely, starting the dragon stuff) was just stupid. When you consider most players will visit it for that Golden Claw quest, and end up completing the quest objective well in advance, you have absolutely no gatekeepers to make sure the player is of X level. Later on you have the Trolls at High Hrothgar but by that point the player has already been killing dragons for potentially hours, and the damage has already been done.
This is what we call conflict of story and gameplay. You're the Dragonborn, so you have to be awesome and amazing, and capable of killing dragons to absorb their souls... but if you got your ass kicked at a low level by them, that would kind of contradict the entire premise in the first place. Meanwhile you still need challenge in the game, hence Bandit Marauders who can strip your flesh in seconds flat, while the "lethal" and earth-shattering shots of a dragon barely scratch you.
Setting it up as an acquired ability rather than an inborn one would have been smarter and would have fit in better with the Elder Scrolls theme of constantly growing in ability over time, the "zero to hero" story. Unfortunately that would have also killed the YOU ARE THE CHOSEN ONE thing, if just about anyone could have potentially been Dragonborn, but I'll take a balanced game over a dumbass game-ruining plot any day.