Blood testing, we'll never know who is juicing and who is not? There are so many ways to conceal the drugs through urine testing, so I don't know who the commission is trying to fool? They say it's very expensive, then just leave it be and don't pretend that fighters are clean or not. What do you people think?
Basically, true. They know they aren't catching the vast majority of people cheating.
The trick is, they don't care. Like many government functions this is for show and not for actual effectiveness. As long as they seem like they're policing the sport to the casual fan then their job is done.
Cheaters will continue to have great success in MMA (and most sports, tbh).
As a man believes in his heart, so he is.