i don’t think that many cyclists have ever been ‘clean’ just how far you were willing to push the grey limits.
I do think it got taken to an extreme in the ’90s though.
Coppi, Merckx, Simpson etc there has always been drugs.
I am just waiting for some other sports to ‘fess up. Little things, why are Rugby Players so much bigger since the game went pro, how far can a golf player drive, there will be doping going on in almost every pro sport. Cycling has for better or worse decided to do something, it might be because of outside forces in part, but it is going in the right direction, unlike many sports which have chosen to ignore drugs and thus have no problem.