What a completely ridiculous non-story. Just after some publicity me thinks.
I've operated as part of an all female crew regularly, to many destinations, and I am absolutely certain that there have been "all women crews" to just about every continent in the years preceding this "event".
How totally ridiculous.
I think it would be more unusual to have an all-male crew.
I have never flown with an all-male cabin crew and male Captain, so suspect that must be far rarer.