I don't get the conspiracy theories here. There's really zero evidence to suggest that this is anything even remotely close to season ending. So what motivation would the C's have to say that a 4-6 week injury is only a 2 week injury? They sell out games anyway, so that's not a problem. And it's not like teams are preparing for them 3 weeks in advance and that we need to "trick" those teams.
It was one thing in 2009 when they were being ambiguous about a playoff return. It was giving the players a ray of hope that if they could get through the first couple rounds, KG could be back. It also was potentially confusing future opponents. But none of that is true now.
Finally, while I did sleep, I did think that a KG injury was likely the worst possible Boston injury right now. Even with someone like Brady, you know that the Patriots might darn well be better next year with 2 first, 2 second, and 2 third round picks. However, with the lockout looming, this could be the last hurrah for the Big Three. Thank goodness that he's not out.