I look at remarks like this as a result of not practicing in advance. As programmer types, we don't typically get up in front of people and make personable comments. If we are up in front of people, it's discussing something technical, which is something we are qualified to talk about. But introducing panel moderators -- when have you ever done that before? All you have to go on is cliches you've picked up from TV or movies, and you saying something that sounded funny when a comedian said it might not sound as funny. You don't know until you try. You don't know until you practice.

(Personally, I think the best way to navigate uncharted waters like this is to stick to the facts. "Here's our panelist, she has a PhD from Harvard and likes skiing." I'm not going to get any laughs or win any awards for that sentence, but I'm also not going to make anyone feel bad. And that's more important to me.