Only someone who either intends to lie or has something to hide would be afraid to do that.
And Kavanaugh is going to the hearing on Monday, and has demonstrated an unwavering willingness and eagerness to speak
of the allegations against him, under oath, from the moment they were made.
Ford keeps trying to pretend like she is willing to testify, first after the FBI investigates a State Crime they have no jurisdiction over, now at some hypothetical future date that is not monday.
"I'm willing to testify but not at this time."
Well, Monday is the only time.
If she doesn't have anything further to say about her allegations, then neither will the senate, and the confirmation process will proceed as it were.