The age category records are still there. If you for example you go into your local results and click on an age group, it is a clickable link.
The first finishers table is still there too, but you have to google it, so I don't know long it will be there for. Every weekend, the website Fast Running does a round-up of the top 10 male and female finishers across the UK (and another one for Ireland) and I assume they use that page - it will be much more difficult and time consuming to trawl through every parkrun website.
I do wonder if they will amend the results email too so all it says it overall position, time and age grading.
In the parkrun stats group it's transphobic women's fault for daring to have an opinion of course, rather than cheaty male runners running as women. Of course it is.