User blog comment:Raybat/ArchAngels/@comment-5619706-20141108015651/@comment-5619706-20141109021434

Godstiel keeping Michael and Lucifer in Hell is irrelevent; Godstiel claimed he could have just erased Hell completely.

Dean killing Eve with the phoenix ash is because of plot armor, the same way two measly humans defeated the two most powerful archangels and bound death with a spell. Also, sorry, but I don't want to go through your entire block of post because all my points were based on canon, yours are based on speculation.