No. We're not talking about just one or two discreet scratches or imperfections. The situation is more like taking a piece of fine sandpaper and abrading the entire surface. But we don't even need the surface to be degraded that badly, or at all. All optical systems will be plagued by some degree of glare for bright sources. There's no way around it.
No. There are multiple examples of "well delineated" glare from known sources in Mick's video, and other places. For example, this one, which we now know without any doubt was a jet airliner:
The glare in GIMBAL was further processed to sharpen it. So it looks exactly the way we would expect glare from the hot engines of a distant aircraft to look.