Hagbard's idiocy aside, the reason most news outlets are mentioning the Olympics at all is to show how happy most Londoners were, and how quickly that was destroyed.
I suggest that all the pocket politicians and people who seem to think they're better informed than the intelligence sectors of all Western governments crawl back under the rock they came from.
And look, don't argue with me. I live near the affected area, I went to college with somebody who is missing, presumed dead because of the bombs, and I don't stand for wild conjecture and silly Internet know-it-alls. Either find something useful to say or zip it.