Going to throw this out there.
Just because one goes to church, does not mean one doesn't bone. Speaking as a former church goer.
Is it the case with them? Only they'd really know.
Before even getting into the financial stuff, there could be plenty of reasons one is renting. Wouldn't write off one's entire financial prudence just from that one fact alone.
I agree with Traum on this, seems like the guy is getting the short end of the stick here.