That was presumably the point. True equality would be to merge the male and female professional sports and let the best people make it, regardless of gender. However, of course, everyone recognises that, in most sports, that’s not an option. Once you have segregated sports, equal pay is simply not a valid argument unless both are being paid by the same organisation and can show they are as valuable. Men’s and women’s football are entirely different things.
I haven’t checked but I’m assuming female models still earn significantly more than their male counterparts? Sharapova also earned far more in off-court endorsements than a male player with similar success would. To be blunt, women benefit from their physical qualities in other areas and, in my view, most of the equal pay arguments in sport are understandably self-serving, rather than because of any actual sexism. It’s just irritating that its never called out by the mainstream media, for political reasons.