I would guess that the slap on the wrists IU got from fooling with A-Hope recruits might have redirected IU's recruiting. I know he was voted second most likely to cheat by his peers, but I think he trys reasonably hard to keep the program clean. Crean might steer away from A-Hope, unless they have a really good recruit. Maybe they don't right now, so you don't see the pipeline in action.
Remember, the personality of the coach is a bit manic. I think right now he is focused on flying all over the country throwing IU offers out the plane window as he passes over a recruit's neighborhood. IIRC he is spending an enormous amount of money on recruiting right now, IU leads the BIG in MBB recruiting spend by a large margin. In true manic fashion, he gets focused in one particular type of action and pursues it frantically.
While there will always be kids that want to play at IU because their families have always been fans, many of the more rational recruits in the state seem to avoid the catch & release strategy Crean uses, and look elsewhere. That may be why he is flying around the country.