I'm not sure if there would still have been a response from Jensen without the mood of the crowd turning or not because honestly from the video I definitely got the vibe that Jensen really wasn't happy with answering that question and was wary of what she was getting at, but then also the atmosphere of the crowd didn't help with making everyone collectively feel that wow this is an uncomfortable question that we should quickly move on from. If anything it was probably Cliff (who was presumedly just acting on orders) that shut the question down more than Jensen or the crowd. At least from what she was later saying on tumblr