I think the Jared situation is supposed to be solved, despite, I agree, a lot of problems given what we saw before. It doesn't even seem like the FBI is still investigating beyond knowing it had something to do with espionage. It's just really hard to imagine this kind of messy domestic dispute happening in a way that so much looked (and sounded it seemed) like a hit.

I don't think the show made any connection between being in a crunchy granola church and being a KGB agent--though I've seen some viewers make that odd connection. I think the show's point is just that Paige as a person is someone who is attracted to sacrificing for causes bigger than herself. The two causes have nothing to do with each other except by accident at points.