User blog comment:Collbrande-Ex-Caliburn/Hyoudou Issei's Peerage composition hopes/dreams/hypothesis/@comment-10330822-20161112235347/@comment-9595671-20161121173336

If it was obliterated it would have been fully destroyed, and since Gabriel's in charge it's still intact, how much is the question though. Still with what I said about Ajuka, he can likely help get it back running, I kinda think Michael would tell him how to help there in case any major problems popped up.

I think by Volume 12 he began considering that may have not been the best idea, and Trihexa likely added another layer considering the Fallen Angels have the least amount of members.