They've been stripped of their title and must forfeit all their wins because they weren't using players from their district. It was a running joke throughout the year the past few years in the area anyway, but it's a shame for the kids.
Also, Kirk Hinrich is now the least valuable player in the NBA, having contributed a net of nearly -60 points (-2 wins!) to the Bulls. To get an idea of how detrimental that is, it's essentially Nikola Mirotic's value to the team this year.
The weirdness of Rose's line aside, the reason the Bulls won this game was Noah and Gasol. Noah looking like Noah again is huge for this team (to the point they can weather missing any SG production at all and a 33 shot, 11 TO game from their PG to beat an unbeatable team on the road).
Unfortunately the Bulls don't have a D-league team, so there's no way to do that to assure him minutes. He's just going to have to score 15 points in 90 seconds for Thibs to trust him on the floor.