There seems to be a strong sentiment among the Democrat rank and file that they have had enough of Hillary. Many, many of those who supported her and voted for her want her to go away. And then you have the Bernie brigade. No way she gets the nomination (unfortunately!).
His crown jewel Hillary joke was "I want to know, when Hillary stats yelling at Bill...if she starts in with 'why can't you pick up after yourself? Your pants have been on this chair for days..." I wanna know...does he go there? Does he look at her, and say "you know, if you has some charisma..."
It brought the house down. So while the theater crowd may be sycophants, the normal people in NY seem to be pretty happy laughing at her.