One more thought on this: CBS and Tasker knew that Belichick wasn't going to do an on-field interview before the AFCCG. The topic had been discussed in a production meeting in the days prior to the game. They agreed on some players who would be interviewed instead of Belichick.
There's probably a good chance Harbaugh told the network the same thing prior to the SB, but why should that stop Sharpe (and Esiason) from blasting him? I'd like to think that Sharpe learned something in the last two weeks, but that's not likely.