I mean if your point is that a tiny percent of the cases are truly an accident, I can go with that, I mean there are very few absolutes in this world. I don't think we should get in a mindset that it is all good that these players are getting busted just because a very small fraction of them may be innocent. A very small percent of people in prison are innocent, it does not make all the other inmates decent guys.
The vast majority of these dudes know exactly what they are doing, they have every tool and resource available to them. What they put in their bodies is a big big deal to them, they know that it partly decides how much money they are going to have for the rest of their lives.