To be fair to the players, if you have a supplement and the team doctor says its ok, then your going to believe him. These guys are Rugby players, not medical people. So i'd agree with you.
That some players took some pills which apparently are legal, just not before the game and one of them was silly enough to take one in the period he shouldn't do is one issue. Its not good, but its hardly a terrible blight on the game.
The fact that the govening body then got together with the club and decided to cover this whole thing up, not follow the correct procedures, let Hull even play an important game to give the drugs time to get out of the system is terrible. It really should lead to some people at the top being sacked.
They turned a badish situation involving a mid table table team into a credibility destroying situation, which could effect the whole game.