[bearmode]

The questions were pre-recorded. It said so in the linked article. Nobody knew what Zuck was going to say when they asked their questions.

[paleotrope]

Which I interpret to mean that Zuck was acting here. Do we think that they present unreviewed questions to the boss in front of the company?

This was for show.

[seanhunter]

I misunderstood that. Then the questioner is 100% not to blame in my view.