No, the holes aren't a fluke. The sinus cavity is part of the horn, and when you remove the horn, there will be a hole unless the horn takes so long to come off that the hole already had time to close beneath the band. The other side is when something occurs like on her left horn, where it comes off early. The scab will hide the hole, which often closes as the scab heals.
The wet look is the shiny scab - which is dry. The yellowish stuff is antibiotic spray. The band is gone and doesn't stain or anything like that. I've had her on a course of injectable antibiotics since that last horn detached as a precaution as well.
She did have discomfort about half way through the process as the horns began to slough (about the same time as the first pictures were taken). I administered Banamine for that. TODAY she is in no pain. Actually, I weaned a kid yesterday and introduced his dam into Becky's pen and they BUTTED each other (the dam was horned) over and over. I cringed like mad, but Becky was unaffected.