I don't believe this logic can hold water. How are you able to dictate what relationships, wither they be through a video game or through a real life experience, are more meaningful or impact with one blanket idea. "Since it had to do with wow it couldn't possible be as important as something that happened in real life."
Additionally, take out the fact that it's a video game, consider the decision between going to an ice cream shop or to work out. Life is a series of forks in the road, and just because you took one doesn't mean that your life is worse because of it.
At the end of the day this is a post, although well thought out and better developed than most, but all the same as "Yay I quit wow and I'm posting about it on wow forums, give me attention. This is why you should be like me" that are made every day. This one is just more offensive because the OP has chosen to say that since they don't play wow that anything to do with the game is meaningless.