User blog comment:KillRoy231/SPOILER's return/@comment-3169324-20181130110850/@comment-77.189.133.6-20181201090558

Well, considering that almost all people on earth fail to qualify hosting Lucifer, he isn't really random. Even if Sam was originally his true (and still is) vessel, Nick with the modifications made by Crowly and his research team may even have surpassed Sam as a vessel in terms of "hosting quality". That's what can be argued at least. I basically agree that only the true vessel should be able to revive "his archangel" in the empty.