No. It's the committee that got cold feet. They normally like to grandstand, make mini speeches and wallow in the bullshit. However, how are these old white males going to question a woman about sex acts and not offend. Easy, we'll out source it. That way, a woman takes the heat, we look senatorial and then make our decision.
The senators are voting, they know what they want asked, they're just to afraid to do it. Or, as you said, cold feet.