There are no consequences:
You could only have consequences if you choose to create a morality system. *snip*
I like isolation when it creates a more realistic world. It seems gamers are at this point where they want feedback for everything they do.
Players are impotent:
Players will always be impotent. Whether you're a jack of all trades, or a master swordsmen you'll always succeed and fail in different ways. This also isn't new to TES, or Skyrim. One could argue that Skyrim doesn't force you in a certain direction like past TES games, but isn't that hand holding in a way? Maybe not, but it still is all up the player where you go. My level 40 rogue is pretty powerful when it sneaking, and duel wielding daggers, but is woefully inadequate when using heavy armor, or firing a bow. Same goes for my level 40 jack of all trades.
When people say they want consequences, they mean different things, but they're usually along the lines of: if you join or help faction X, then faction Y likes you a little more, and faction Z hates you. If you kill somebody's sister in the game, maybe the brother shouldn't continue you to sell you his goods, and maybe he shouldn't give you quests and then get lovey-dovey after you do them. If you're a known mass-murderer, maybe the game should track that.
In terms of impotent, what the IGN reviewer meant is similar to the idea of consequences. It has nothing to do with skills or level, it has to do with the ability to change the game world. No matter what your character does, the rest of the world is always the same (with a few minor exceptions like the Gildergreen quest).