There are so many more important things affecting women's sport. Parity of pay, resources, coverage, training etc etc etc.
But...ooohh! There's a male student riding women's events in some sixth form college somewhere in the US everyone!!!!!
What's the point of any of that if women don't have fundamental fairness within their own category? You might as well say doping in cycling doesn't matter because it was only a few riders and it doesn't matter until disparity in funding, training, bike quality, is sorted. Fairness is fundamental to sport, not an afterthought when everything else is resolved.
According to Parkrun they don't do any of what you say they do.
They stopped putting the times on their website after women complained about men being allowed in the women's category. Rather than address that they stopped publishing the times at all. Funnily enough, a lot of competitive men went nuts about not seeing their rankings, which contradicts the 'Nobody thinks it's a race' line.