Crying wolf seems to be all that's left. When you have every agency that's supposed to control doping in the sport run by people whose concern is preserving the sport's image and taking bribes rather than identifying and removing cheaters the only recourse I can see is to make so much noise about the issue that the people concerned more with preserving the sport's image see that they've failed to do so and that the only way to restore the image is to go ahead and actually identify and remove PED users.
I don't know how much time you've spent on this board, but for years we've had people here asking, maybe even demanding, that people in the sport who know what's going on say something. Now that's begun happening and the counterpoint is "Prove it," or "S/he is just an attention whore."
Where Magness is clearly right is that there is NO trust. If there was we wouldn't have these sorts of discussions. Yes, it's unfair if this was a legitimate performance but that's not Magness' fault and he's making a legitimate point that many others who know the sport well are making..