Peony, about BTVS My brother

Peony, about BTVS
My brother read our blog and called me because he was able to pay much better attention. Frankly he is left with the same questions.
1. Yeah, the whole going after Caleb idea was a bad one. We got that. But after all the whole Scooby Gang has been through in the past seven years, the response should have been more of a "Bad idea Buffy." Not all that lecturing.
2. Why did she have to leave her house? I mean she may have had a bad idea, but it is still her house.
I kind of think it was just bad writing because she is leaving the show. While Sarah Michelle Gellar is tired, the character is the Chosen One, so she really would not just stop being the slayer. So anything short of killing her off would be an inconsistent exit.