There are many stunning deficiencies in Christianity, that are elements which should have been there were the minds actually caring and inquiring. Perhaps first on this list is that no Christian ever expresses a desire Jesus had lived longer so that He could say more. The little He said is regarded as more than was wanted, showing He is not loved.
High on the list also is that somehow the fervent declamations that “Jesus is Lord” have never translated practically into “God takes on a body.” Jesus is mixed up and mangled in the human mind, with a man, since they cannot think above themselves even when trying to think about God. Humans are body-identified and can’t truly think about spirit in body.
Right beside this on the list is that no one has even remotely posited that if God can take on a body, the angels may be able to do so too. Angelic embodiments are even mentioned in the Bible but it is done so casually no one takes it seriously. The Abrahamic religions contain interpretations some on Earth are “fallen angels,” who were expelled from Heaven.
As I’ve maintained it is not conceivable for an angel to actually rebel against God. However, an angel might disagree with God’s plan for mankind, perhaps wanting to guide more directly and not rely so much on the Holy Spirit. And in the end this might be the real plan, some angels wanted to stand beside men, and God agreed it could be done.
Alternatively, the angels after implementing this plan discovered God had always been right, that for them to exist among humans amounts to terrible anguish and continual woe. Having agreed that God’s taste of the human “medicine” has cured them of a desire to assert direct guidance, they may want to try to win their way back to blissful Heaven.