So it’s really important to them but they also are kinda “whatever” about it?

That’s kind of just how people work isn’t it?
It gives them some comfort but at the same time the details are whatever. Christians for example could twist themselves up in knots trying to reconcile this and that in the bible, but they usually excuse them with some thought terminating cliche, even to themselves.
Caring about this religion or that is a bit of an idealist notion anyway, so I think it’s more like we don’t think there is much to be gained from that analysis. Religion, like everything else, comes from and is molded by material conditions so looking there is usually more interesting.