You're conflating the fact that Michael clearly wasn't ready to tour somehow with your assertion he was stuck in the past because he chose to perform bankable hits over unknown songs. Neither clause is relevant to the other. If he were performing the entirety of Invincible start-to-finish he wouldn't suddenly remember his lines and have had the fitness to dance and sing at the same time. It is not uncommon for artists much much younger than Michael was to use pre-recorded vocals on tour. You're talking about a man who was over a decade out of touring, out of shape, on a cocktail of medications and in no place mentally or physically to be touring at that point in time. Michael was forced to tour. He was taken at the lowest point in his life, and his life situation was such that he needed to make money. It's like taking a basketball player 10 years out of retirement and expecting him to be an NBA All Star in a couple of months. It was a huge ask. I am not sure how "embarrassing" it is to not succeed in something that was a huge ask in the first place. Anyone in their right mind would know 50 shows was way too much. 10 was pushing it. You might attribute it to being "stuck in the past" but the man was simply in no physical condition to be touring. The setlist was never the issue, nor was his choice of wig, attire or the choreography.
I think what AEG, Michael and everyone involved should have done is given Michael a much longer lead up to concerts. If I remember right, the concerts were announced in March or so to be performed in July? If that's right that's 3 months. They knew he had a drug problem and that it wasn't going to be a straight forward process, but I also think they made the tour so close so as to make Michael actually do it. Ideally there would have been a 6-8 month lead up. I think Michael should have been more forthcoming with his usage and they hopefully could have found some resolution to ween him off of Propofol. They should have agreed to 10 well spaced shows with the option to add shows as necessary. AEG clearly knew they ran the risk of running him into the ground and they frankly didn't care. Yes, they supplied him a doctor, personal trainer, chef, accomodation but they also made a massive ask of someone that they knew was unlikely from the start. And the fact remains there were only two profitable scenarios for AEG - either Michael did all the concerts, or he did none. Interesting what happened to him when it looked like he wouldn't be able to do all, now isn't it?
Regardless, very unfair to call it embarrassing to Michael. It's like taking someone in a drunken stupor, throwing coins at them and telling them to dance. It's only embarrassing if you lack compassion.