Sorry to butt in! But from what I remember Alyson was really annoyed at Sarah for announcing her departure in Entertainment Weekly and having her own feature (and possibly a cover?) from it. So I don't think she was joking, I think the real reason she was annoyed was because she thought it was something the cast should have featured in together and not just Sarah, but she expressed her annoyance by instead complaining how unfair it was on the crew to find out about the show ending at the last minute when they have no time to look for new jobs. THAT made her look ridiculous when it was always blatantly obvious that season 7 was meant to be the last. And that's when Joss spoke up to say if anyone on the crew did feel slighted for not being personally informed of Buffy ending then he should take the blame as it was his job to do that. But again it was all a little ridiculous when pretty much everyone knew that UPN had only picked Bts up for two seasons and season 7 was the last, so I really don't think anyone on the crew was upset by it, it was Alyson's own issues with Sarah