That would be scary if it’s the case . Thought they were tested regularly. Especially in international tournament years etc.The authorities are in on it, think of what would happen to the game if it came out the last 30 years were fake.
It’s the same thing cycling went through. Too much invested in those guiltiest for the organising bodies to do the right thing.
Football is the biggest professional sport on the planet yet has fewer drug tests than snooker.