TSJ has played 814 minutes in his two years at Minnesota. Ayo eclipsed that number on January 19, 2021, 43 games into the Bulls season, in his rookie year. He went on to play 2,110 minutes for the Bulls that rookie season, in 77 games, getting 40 starts. These situations are polar opposites.
As another point of comparison, both Riley and KJ have already played more minutes in their rookie seasons than TSJ has played in his entire NBA career. Playing in Minnesota has not been a good thing - it's been a disaster. He is almost 26 years old and has not had the opportunity to show he can hang in a rotation night in and night out. If they keep him around for 2 more years as an occasional rotation player, racking up more DNPs and single-digit minute games than games where he has a solid role, he's going to be a 28-year old FA with more questions than answers. That's not ideal.