Didn't they talk about Cas healing last season. Was it Baby? I think so. Anyway I assume that he has that power back. And the angels still have broken wings, right - hence the driving. The only one we saw with intact wings and teleporting was/is Luci.
But yeah, that they didn't even acknowledge Sam's injuries pissed me off. Couldn't they at least give us a little bit of worry/aftercare with what he has been through?
I love Mary abd her interaction with the boys. That final scene with the boys, especially the one-on-one with Sam got me all emotional. So perfectly acted as well.
The BMoL don't make sense to me either, especially Toni