They are following primogeniture - just no longer male preference primogeniture.
Personally, speaking as somebody who is committed to the Monarchy, I think it was time for this change - at a when it did not alter a status quo already in place. If the chance had been missed, it could be decades before another simple opportunity came up, because of the requirements under the Statute of Westminster. It prevents one argument being used throughout the Commonwealth Realms against the monarchy - and means any move towards republicanism is more likely to be based on real issues of governance that matter, rather than mere symbolism.
It just seems to me that if they could argue that it’s sexist with the old rules, they could argue that it’s still a classist institution, even with the new rules, and therefore, needs to be abolished.
You miss the point, utterly and completely.
Monarchy is symbolism.
I concur.