As I understand it this was not Laura going out to talk about the Miers nomination. It was Laura doing her part in the Hurricane recovery.
So you would have her be completely silent? Not answer a question when asked? I think that is a bit of a stretch. She answered the question the best she could.
Go after the President if you want...but picking a fight over what Laura said demeans your position and makes those against the Miers nomination seem petty and small.
SHe could have just answered the question curtly...but instead starting chanting the feminist mantra.
Of course, this reveals the whole problem with the Miers nomination...it is too personal to Bush, and it does not appear that he made an objective decision, but one colored by his personal relationship with Miers.