That's pretty much all he did for "Butterflies".
You have to remember that MJ in 2007 sitting in a basement studio with a couple of 20-year-old amateurs is not exactly MJ in 1982, at the top of his game, recording "Thriller". We have to remember that MJ suffered an artistic decline in his later years. Bad-era MJ wouldn't have produced an album like Invincible, where he barely wrote two songs and let a million outside producers and writers do the heavy lifting.
Again, each to their own. To you, Invincible is a product produced during Michael's artistic decline. To me, Invincible is a mastepiece that is ahead of its time. I have said time and time again that Invincible is the album I listen to the most. BAD is a great album, but it doesn't intrigue me the way Invincible does. In my opinon, Dangerous and HIStory are the pinnacles of Michael's career. So, I disagree with you that Thriller is Michael's peak. In terms of popularity, probably yes, but not in terms of artistry.
For me, the number of producers working on an album doesn't matter. For instance, I don't care if a director is also the screenplay writer, the photographer, the producer and the actor or if he shares the directing credits with others. It doesn't mean the director is in "artistic decline" if he decides to get ideas and inputs from others. Why equate the number of songs penned by Michael soley himself to degree of artistic ability? So, in order to prove that he's still an artist, he had to release an album in which most songs had to be written and produced by himself? I guess most artists out there must be in artistic decline now because most of them have help from outside producers.
Rodney Jerkins expressed how much Michael Jackson pushed him when he produced the album. So, pushing and challenging your collaborators is not considered "heavy lifting"? Pushing others to do the best that they can possibly do is an art in itself. Invincible would not be the Invincible that I enjoy and adore if Michael Jackson was not involved in the studio. I truly believe that.
I don't know. If Michael Jackson was the kind of vocalist and artist that you portrayed him to be, that he's an vocalist who copied the original demo without putting in his own vocal characters, that he's an artist who started experiencing artistic decline after BAD, then I wouldn't spend so much of my time on discussing him.
McCartney is still hailed as one of the best artists of all times despite the fact that he hasn't had one good album out in ages. Argurably, his best works are the works that he collaborated with Lennon. Nobody dare to use the term "artistic decline" on McCartney. In Michael's case, he's experiencing artistic decline after BAD as if Dangerous, HIStory and Invincible are unworthy.