Yes but the paralympics is already another arbitrary division and the classes are additional arbitrary divisions.

You can continue to create arbitrary divisions all the way down until every person is the gold medal world champion in their arbitrary division. Bit pointless though isn't it?

At the highest levels of sports though, we generally have two divisions. 'Male' and 'Female'. But, it's not as simple as we'd like to determine which division people can fairly compete in, hence this ruling.