Especially when he committed to the Hawks in August without a scholarship. He may have just stopped talking about his offers (since that's how we find out about them when coaches aren't allowed to discuss unsigned recruits). He may also have scared off other offers when that happened because they decided it wasn't worth their time. For instance, there's an article about him taking an official to Michigan in June which may have developed into an offer if he was still available. All of this just to infer that a number of guys who have watched and coached a lot of basketball think that he is a good enough player that he would contribute to their team.
Once a player commits in basketball other schools stop recruiting them unless tampering is involved. It's not like football recruiting. That's why Joe only had a couple offers but if he would have waited until August right before his senior year he would have had blue blood offers.