This is another hallmark of the Negative Nancys. Whenever the Defense stiffens and stops the other team, it's not because of what they did, it's because the other team "shot itself in the foot". That false start penalty occurred because the entire defensive line unexpectedly shifted over one gap in unison, causing not one, but TWO Tight Ends located on either side of the OL to false start at the same time. Why? Because the Defense caused it. Orlovsky's interception to Mayo was another example, it was savvy defense and a great grab by a guy whose hands have rightfully been questioned over the years, but of course to the NNs it was "a scrub QB giving the ball away to the Patriots because he sucks".
I thought Orlovsky's throws towards the end of the game were very impressive. Why not? He had nothing to lose, was loose, and they knew they didn't have a ghost of a chance to win anyway so could just let it all hang out. There are no consequences if he throws an INT, so he can let it go. Notice that when the game wasn't out of reach, how effective was he?
He may be a 3rd stringer, but he's got enough talent to make it to the NFL. Garcon and Wayne would definitely start over all of our WRs other than WWW. Is it so surprising they can make some plays when it doesn't matter over a bunch of experimental defensive sets with DBs who BB is just trying out to give them experience and see what other options he's got?