#unkillable but then still why didnt they just kill Alastor?

[greatalastoraltruist]

So we know Alastor and Lilith disappeared at the same time 7 years ago. And we know that Lucifer had a meeting with Heaven which began the exterminations. We don't know when that happened though. Either they're not mentioning when the exterminations started because they've always happened or because revealing when they started would give too much away and make it too easy to guess things. All Charlie knows is that Lucifer went to the meeting and she assumes he gave the go ahead for exterminations. But the exterminations haven't always happened. They only started after the angels, or specifically Sera I think considering no other angels knew about it, became afraid of the power and influence Lilith had over the demons.

My current theory is that that meeting was called between Sera, Adam, and Lucifer because Alastor and Lilith were planning on working together with him broadcasting her voice on his radio station to inspire the other demons to rise to war against the angels. I think Sera demanded that Lilith and Alastor be separated with Lilith making a deal with Adam to stay in heaven where she can't empower any other demons with her voice or even contact anyone in hell and that Sera demanded the exterminations happen as well in order to not only lessen the demons' power but also instill fear in them in an attempt to prevent future uprisings. I think Alastor was given the options of either be killed or sign a contract limiting his power and requiring him to stay away for a while so that their little idea of rebellion is forgotten amongst the masses. I especially think that because of Zestial's comment about folks thinking Alastor had fallen to holy arms. Maybe Sera is his contract holder. That or they tried to straight up kill him and he somehow escaped barely alive and it's taken this long for him to heal and regain enough power for him to feel comfortable revealing himself to society. But trying to kill him wouldn't explain the contact or his need to 'unclip his wings'.