On reflection, I think it's more that you've captured late-canon Buffy pretty accurately, and my primary response to late-canon Buffy is not exactly politically correct. Would I be right in thinking that Buffy's attitude here is bound up in the level of trauma caused by Glory's visit?

It was just these two lines that really got under my skin (because they're *so* Buffy):

"Whatever rationale he'd had, he'd ranked it above his own people's objections, and over any value he might still have put on their relationship."

"He always had. He just had a tendency to make spectacularly bad judgments when his personal goals ran into conflict with reality."

Pot, kettle, yadda yadda.