While this is a shit post, I'd like to put some credible info about the issue. There is no definitive evidence of TOs knowing that the scene has a cheating problem, but considering
A FaceIT admin says that FaceIT knows and has covered it up.
ESEA suddenly going quiet after saying they would reveal pro cheaters.
A tournament organizer, Ex pros and coaches speculating about Valve covering it up
There are obvious clips
They have a million dollar industry and jobs to loose.
It's not hard to imagine it being a possibility.