Aby_Z said:
Well, a nice amount of time passes between the incident and a reporter asking him questions about it; he's got plenty of time to prepare, share this story with friends on WoW, and plenty of time for this idea to spawn within his head.
Another scenario, perhaps while talking to his friends on WoW, perhaps they suggest such an idea for him to use after the kid is made aware that he'll be interviewed by a reporter.
The thing is, you took a few too many other things from what I've said, like infering that this kid is somehow a genius. Just because a 12 year old can think ahead beyond next week doesn't mean he's a genius (At least, I hope not.)
On the kids mind is not how to boost the reputation of video games. He is 12 years old. He is telling everyone what has happened, and is incredibly pleased when people reply "Cool story, bro". He tells all the members of his family, all his friends and even people he doesn't know.
A 12-year-old is not necessarily a genius to spin the story to speak good of videogames, but he is definitely cold, calculated and very inhuman if he is able to sit quietly in his room after having had a near-death experience ultimately leading to him saving the life of his sister.
Also, you consider him logging onto WoW to tell his internet-buddies, but still will not consider the fact that he learned the concept of "aggro" from WoW? You know, back to the whole thing about you outright refusing him having learned it from WoW.