missed his junior year of football with a broken leg. As reported he & Babb were injured during non-contact drills.
https://n.rivals.com/news/st-louis-2019-mj-anderson-suffers-setback
A no basis guess:
Maybe he projects as a future DT only & Mizzou is fine already. Some show his weight was/is almost #270 already. Maybe qualifying has never been a problem, but Illinois St & Indiana St did offer at some point.