“Let her speak please”

But I would like to just point out what, I believe, it's a strong signaling that it was sexism: the whole audience reaction to when the woman shouted: "Let her speak please". There is a genuine, spontaneous and loud ovation. Contrast that with the fact that through the rest of the video, the moderator doesn't act the same way to other panelists; and it makes clear to me that the whole audience was considering the moderator's behavior inappropriate and motivated by her being a woman. So, for subjective assessments, there is some wisdom of the crowd worth considering (especially as this was not a 'feminist' crowd or even a female-biased crowd, on the contrary, I believe).

Now, to give the moderator some credit, after some awkward moment where he does not know how to keep it cool, he does take the hint and shut up.

EDIT: I would like to give some more credit to the moderator. At the video moment that lorenzhs pointed out below (https://youtu.be/Er7qPv8jsZo?t=1h1m55s), the moderator explicitly state that Veronika Hubeny was not given a chance to speak about her knowledge. This, I believe, is an indicator that the moderator is not a bad person and his sexism is not conscious or originated by strong believe that women are not as capable in the field as men. I still believe he is patronizing and is being sexist, but in a way that he can get the feedback and change his behavior, as he is not a sexist. He was being sexist, he is not one. My point is: he seems to be a nice person, not a villain, that is influenced by a sexist environment. And changing that environment should be our goal, not pointing fingers. As Marilee Talkington did, politely and publicly.

EDIT 2: After reading Hubeny's comment I'm more in doubt if it was sexism. Actually, I'm more inclined to believe it was not sexism. As I said, it is a subjective call, and her opinion matters most than others as she is the subject and used to being surrounded by men in her profession. Her comment is very kind and smart also in itself, worth reading.

This thread is specifically and pointedly about men speaking over top women, especially when there is a power differential (panelist vs. moderator in this case). Not about the general problem of needing to speak up for yourself.

the moderator was somehow socially aware (such people exist) and felt, or seemed to feel, that the interviewee was anxious, and felt that doing the talking for her made her more comfortable.

or we can just assume it was sexism. because everything is always sexism at all times when theres a woman involved.

but then obviously its still sexism because assuming someone is afraid of attention must have been because shes a woman and any true sexist would assume that women, being women, wouldnt ever want to be in the spotlight, so sexism either way.