I didn't mean to offend you. I don't have the benefit of the inside details, as you apparently do. All I have to go on is what Ken Rush said at the start of the show last night...that it would be shortened because the rough crossing cost them some rehearsal time. He didn't mention training, sign-offs, GMA, or the other items from your list.
I certainly wouldn't want anyone pushing something and creating a safety hazard. As I said, what we did see was good.
However, I also want to point out that I am paying for this cruise (a lot) and therefore the expectation is that the shows would be ready. If they aren't then a more substantial explanation should be provided by the cruise line, and not from someone with insider knowledge posting it on an internet forum.