I'm not sure why I can bracket the 'vampires are good' plot. I suppose it's partly because it's actually rather irrelevant to the story, and the 'slayers are bad' plot works just fine for me. And that's what's doing the work story-wise, though that could change at some point.

But yeah, absent some in-story explanation for the public going insane, the 'vampires are good' stuff is a black mark on the season.