Have you actually paid any attention to sports? Like, remember how Barry Bonds cheating (when everyone did) was a Really Big Deal and now that it's all known, everyone in baseball can't even decide if Bonds' record is the real record or not or what?

Or Lance Armstrong?

Or Marion Jones?

Or Kamila Valieva?

People worry and argue about whether bicycle tires are okay, whether swim caps are okay, whether shoes are okay, etc. etc. etc..

The criticism you make might be reasonable in the other cases, but in sports people already care an immense amount about rare cases where there are really small (but nonzero) performance gains.