I think so, but they don't want salvation. They are unwilling to compromise their independence to conform to the authority of God, and so they have chosen to live in separation from him.
The tree of knowledge of good and evil, which is symbolic of law, is symbolically connected to Satan; Satan in that tree. God never condoned law in paradise. If fact, God made a taboo against law. However, since Adam and Eve chose law; knowledge of good and evil, God still wanted to help them, by assigning them Satan; tutor, to be the Lord of the Earth, in charge of humans and in charge of law. Satan was the law expert, so they were to be trained by the best, albeit, not by God first choice for humans. This would be like wanting your child to be Doctor, but they choose to be an Artist. This is not optimized and you may not be happy, but since you love your child, you hire a top artist to be their teacher.
Satan; the teacher, was condoned in heaven, through the Old and New Testament, until Revelations, where he and law were no longer condoned in Heaven, as a way to salvation. The analogy is a child may learn analogies of science, like an atom is like the planets orbiting the earth. But by the time you reach High School, this model is no longer condoned, as one gets introduced to the concept of wave functions. What had been good in the childhood of humans, needed to replaced, with something more adult and closer to the truth.
Satan and his dark angels being thrown to earth, is about a throwback to the past, that was once educational, like taboos, but which are no longer useful for a mature audience; no longer condoned in heaven, but still being practiced by the immature humans. The dark angels and Satan, who are thrown to earth, are there to help people understand how what had been useful in ancient times; can now create pitfalls in a more mature time. For example, law used to be made for the righteous man to protect him from the compulsive and predatory evil. But now in modern times, law can also be used for the purpose of evil and for escaping justice; crooked lawyers and loopholes; Al Capone.
Fan fiction debates can be fun. Perhaps the angels are intelligent enough to be without excuse. It's But then why did they rebel in the first place? It is a bit of a conundrum. It appears that no matter how you approach rebelling angels problem there is a problem with the concept of an all knowing, all loving, omnipotent God.
The story seems to tell us that God clearly is not all powerful, or all knowing.
Another way to look at this is this symbolism is part of a larger plan, connected to our continuing human education about knowledge of good and evil. But now this is more for modern mature people. As an analogy, the blatant election interference, where a leading candidate for President in the USA, is under a wide range of trials, for a wide range of charges, could have been approached last year, if it was so important. But it was deliberately postponed, so it could be more effective for election interference; tie up the candidate's campaign time and campaign money; $1/2 billion, to deliberately harm his election chances; misusing the power of law.
This is a good demonstration of the corruption side of law. This blatant demonstration is needed to wake people up, who still think the same people in charge, were never capable of such legal loophole abuses of law, in past elections. The dark angels have a job, which is to encourage evil in people to help awaken those who sleep in their ignorant bliss of self deception. Many still think law is still for the righteous man, and not also for the crooked man. Lawyers are among the least trusted profession. What does this lack of trustworthiness, say about law being easy to abuse?
In trials, the witnesses are required to tell the truth, under the risk of perjury and jail. Why aren't the lawyers; prosecutors and defense lawyers also required to tell the truth in all trails, under the risk of jail? The shadiest people have the most freedom to lie??? This is symbolic of Satan still in charge of Law, not God. Law, as this, is not condoned in Heaven. Both the offense and defense are allowed to have liberties with the truth, via loopholes, that even the most honest witness does not enjoy symbolic difference between law once in heaven and now on earth. At one time lawyers had fear of God.
President Trump may be part of this dark angel dynamics, in that he is competitive and instinctively knows how to bring out the worse, in the worse people, by virtue of his pride, and his ingenuity and wealth; can pay the best lawyers for loopholes. The once hidden two faced darkness of these people now have come out on full display, so that even the blind can see. Many still do not care or get it. The goal may be for people to wake up so law can modernize and return to being for the righteous man. The light appearing in the darkness; contrasting the laws, loopholes and legal games of the evil man. Those who practice evil law are in panic mode; all caution to the wind. It may be that half of the dark angels will find redemption, using the power of darkness, against the darkness, to help the good angels; Holy Sprit.