I kind of have the same take I did on the UCLA story in SI, the Nelson stuff was apalling but in general if they looked for months and only found drinking and pot and ecstacy use among players I'm actually pretty happy, I was much more worried about NCAA penalties, covered up positive tests or academic fraud since those are the things that indicate a program out of control and a need for a coaching change etc.
It is not good certainly, but Kansas is far from alone in having players who smoke pot and I guarantee you other programs have dealers sitting in the crowd too.
If they find any evidence of a larger connection like say gambling that would be huge news, and that is of course why schools worry so much about this stuff it's not the drug use it's the player getting in a position where they somehow owe something to a dealer who might have ties to gambling.
So far there's been nothing to suggest that was going on at Kansas.