You can't have a Thriller-type album on your first try. I don't know what the criteria is, but to have an album like Thriller, you need the following:
1. Quality. No songs that people can point to and say that they should have been left off. You need a perfect or borderline perfect album.
2. You have to be an established artist. Anybody can have a great debut and slip up on the next one. By the time Thriller came out, Michael already had a big solo album and he had been famous for years. There was a clear evolution from Off the Wall, which doesn't happen on your first album.
3. Commercial success. Sales aren't the most important thing, but people have debates all the time over what Michael's best album is. Nobody debates what his biggest album is. Hip hop in 1991 was nowhere near that place sales-wise, but a Thriller-type album has to be you at the height of your popularity, where you can do no wrong and it sets an impossible standard for you to reach.
If you have a Thriller in your catalog, your next one can't be Off the Wall. It takes away from what Thriller is and what it meant to Michael's career. If The Low End Theory is Thriller, then People's Instinctive Travels is Off the Wall and Midnight Marauders is Bad.