He rebuilt the roster, won the ACC regular season, swept the dookies, earned a 1 seed in the NCAA tournament, and was a couple boneheaded Withers' plays away from the Elite Eight. A summer contract extension offer isn't surprising.
Based on his base pay, he's still susceptible to being bought out/fired if next season isn't up to Carolina standards.
I think this just suggests Bubba knows that NIL was a serious issue in Carolina athletics recently. Because the goal around UNC hoops right now is to increase NIL funds and put a GM in place to modernize UNC recruiting.