Hosting a drug house makes me believe something a little more than simply smoking weed was going on. Because I had a party back in the day that got busted and some of my buddies had been smoking. I was charged with a Disorderly House and it was a simple misdemeanor. Paid an $85 fine and that was it. Hosting a drug house sounds worse, but it has been 10 years since mine occurred so maybe it's similar to what I had.
Regardless, you have to look at the circumstances here. 5th year transfer player with a history of problems. In my opinion, the coach should take that into consideration. If he were younger and this was his first mistake then maybe you let it slide.