That is the Associated Press All-State team, and it always seems to favor the Chicago area players, and the teams that go far into the playoffs. I think just about every first teamer on that 3A All State team was from schools that made it to the Elite 8.
The IBCA All-State team (not announced yet) is better at recognizing downstate kids.
It may be true that it favors Chicago area players but there were several area kids on the 3A teams. Deal, Richwoods was first team. Bielfeldt, Notre Dame second team. Frazier and Lundeen honerable mention. I to am surprised he didn't receive some mention but I'm not sure it was Chicago bias.