This is an easy one.
The standard is if you are appearing before a committee or called to testify at a hearing, you are at the mercy of the panel/committee.  DeVos was cut off by those questioning her, while Harris was cut off by her peers. The double standard is that no one chastises a male congressman for being tough on a guest, but it is okay to chastise a woman for being tough on a guest. 
Also, feminism doesn't require us to accept those with weak ideas, flawed candidates, or the corrupt. They should be allowed to be grilled and forced to defend their ideas and their record.