Not necessarily. Sure, all else being equal, then yes, I would agree. But I think the point being made here was that there was something different with the wo

Not necessarily. Sure, all else being equal, then yes, I would agree. But I think the point being made here was that there was something different with the woman - specifically, that she is more introverted than the other panel members and the moderator was reacting differently toward her because of that personality trait, not just because she is female. To gauge for myself, I clicked the video linked above in the comments that went straight to the segment under scrutiny. My immediate response (without reading the comments here or anywhere else) was not that the moderator was sexist, but rather that he seemed extremely energetic and really into the topic that happened to be her area of expertise and got carried away with himself and started rambling about string theory. From the video I actually get the impression he has a great deal of respect for her and is genuinely extremely interested in the topic and just ran off course. Revisiting it after the comments here, I think that's still very true, but I think what was mentioned by another about this being his extroversion filling the gap her introversion left is probably even more accurate. Watching some more of the video, she seems more introverted and slightly less comfortable speaking than the other panel members. I also think that in the general case the other panel members made their responses a bit more concise. I think all of this was a factor in how he responded to her. Maybe that makes him a poor moderator. But I don't think he's necessarily sexist.