Is it a Feminism society or a Feminist society? A significant difference.
It's a Feminism society.
I see this as problematic because a disproportionate number of Old Etonians, who by definition are all male, and are also mostly white and from wealthy families, have ended up in positions of considerable power and influence, and have done very little to improve social mobility and move towards a fairer society with equal opportunities for all. E.g. David Cameron, Boris Johnson, Jacob Rees-Mogg.
If some Etonians were genuinely buckling down and considering male privilege I'd be delighted. But from the brief report in the link I put in the OP, it doesn't sound as if that's what they did at this joint meeting (which I also note now happened 16 months ago). Instead, it sounds as if they are mulling over gender ideology, which is anathema to me, as it treats gender stereotypes as if they have some kind of objective validity that trumps biological sex.
Oddly 
, bio males who ID as female continue to be treated as male for the purposes of primogeniture and inheritance, and bio females who ID as male don't. So a Duke's eldest child who becomes a transwoman will still inherit the dukedom in due course, but a Duke's eldest child who transitions to become a transman will never ever inherit ahead of a younger brother. That tells you all you need to know about how genuine Parliament thought transition was when it passed the Gender Recognition Act 15 years ago.