Before EPO all doping was amateur hour imo and I'm not sure if EPO was alread ubiquitous in cycling in 1990; blood doping was known already at the time but I also doubt if it was used much outside really professional doping programs like in East-Germany and stuff like that - it takes quite a bit of expertise and equipment to do it right and manage the risks.
Of course the whole rant loses any shred of credibility once you claim Fignon and Chiapucci were clean and would have been the rightful winners.