Yeah, some people seem to be too focused on metagaming rather than just enjoying the game and they won't rest until everything is perfect. It's a bad attitude when playing a game, or living a life...
However... overpowered skills/talents are a problem indeed when you want the game to be challenging. Consider this example, I like this specific skill, I think it fits the concept of my character and I want to utilize this skill whenever possible. But what if it makes the game too easy? I just don't use it? It's very reasonable wanting it to be more balanced.
So... while I understand what you are saying and agree with you on some points, I would say game balancing is not completely unnecessary.
Yes. Maybe my initial post sounded more extreme than I meant it. Of course a game can become completely unbalanced and not fun as a result.
But if you observe, something like Wow there is an obsessive tendency to balance everything perfectly. And my point is for single player games that is not needed.
There is just no need to overdo it...
