Thanks for the link. It seems that the gradual leakage solution was thought to require an additional assumption that violated semiclassical gravity, but this ne

Thanks for the link. It seems that the gradual leakage solution was thought to require an additional assumption that violated semiclassical gravity, but this new result is consistent with semiclassical gravity. However, platz's reply to my original comment makes a good point about the new work using a gravitational path integral, so I think I'll take that as my answer for now.