Making a "funny legal argument" implying your client should get paid if he in fact did sing on hotly contested tracks instead of just saying nothing at all is a pretty moronic thing to to do in the first place.
The issue is that The Estate saw it as a flop. I don't think people would be saying that if they hadn't made it the reason they did no anniversary albums after. Only reason Thriller is getting one is because it's Thriller and they think it will sell a lot more.
Yep, his story, where he came from, what he achieved and his immense talent, dedication and success will always be a triumph that nobody can take away from him. His life may have had tragic elements that nobody can deny, but his story will always be a triumph in my eyes.