User blog comment:Mlgrsd/Will Crowley return from the dead?/@comment-1975828-20170520075102/@comment-1031724-20170521062550

And I think it was leading up to that moment where he finally decides he doesn't want to be king of hell, and would close the gates of hell forever once Lucifer was sealed away. And, with the ritual and his body in the other world, they wanted to make definite sure he was 100% dead this time (after all the times he faked his death or escaped it) and can't be revived.