IOC's enforcement on this is absolute shit, no question. But a rule banning specific substances isn't put in place to put down, hinder, or oppress any one race or gender of athlete. Nobody made either athlete take what was a known banned substance. I don't think either should be competing for the same reason. The fact one got tossed from competition while the other didn't isn't a fault of the rule, or make either offence better or worse than the other. This is the IOC being shit