I'm glad you posted this because I've been wanting to discuss the aspect of the episode that bothered me the most: reapers being harmed by angel blades. We see not one but two reapers harmed, and in fact killed, by angel blades, just like angels. We saw that with Ajay in Taxi Driver, too.

I was surprised by reapers taking vessels, but I understand your reasoning of how that might be possible. However, what I don't get is how an angel blade would hurt them. The boys have often said "you can't kill death" referring not to the entity Death, but to reapers. I believe it's said both in Faith and in Death's Door. I thought only something like Death's scythe could kill a reaper. Now, we see them being killed by run-of-the-mill angel swords? That was the one part of the ep that didn't make sense to me at all.