If Romney would have made the statement you opined above regarding the London Olympics, then Brits would have REALLY blasted him. It is the British who are overwhelmingly angry at the lack of Olympic security, and if Romney would have done the "Aw, shucks" route you suggested, then he would have been scoured by the British. And from THERE, the Mainstream Media would have taken their cue from the Brits and stated that "Romney is out of touch on the Olympics that he poo-pooed OBVIOUS Olympic discrepencies. And he ACTUALLY RAN an Olympics before? Tsk, tsk, tsk."
See how that works?