The relation to porn is of course obvious due to the presentation's subtitle, referring to something as a 'money shot' should probably not be considered pornographic in intent, in my opinion.
"I'm co-opting the term money shot, because I think it's very valuable... we all know what it is, if you don't know you can google it because I'm not going to talk about it, but if you co-opt the concept what you come away with is the content people actually care about and that is what people pay for in porn..."
If you can't talk about the title it's probably not a very good one.
I thought that the porn context was quite inappropriate myself and broadly supported Richards at the time, although I also think she should have taken her concerns directly to the organizers first. I'm not really offended by porn, but I'd rather not watch it myself, and it's very predictable that it will be offensive to quite a few other people, who'll feel excluded from that presentation even if they're interested in the technical topic (making effective screencasts). In the organizers' position I'd have asked the presenter to consider something more general, such as 'what you can learn from movie directors'.