WoW is declining not because of feminism, but because of shitty management.
They have a lead creative that outright admits he only cares about competitive raiding and nothing else, a design team too busy building skinner boxes rather than interesting gameplay, a philosophy that equates time played to quality which leads to so, so much artificial timegating, and a story team that hires well known fantasy writers and proceeds to ignore everything they say.
Ion is killing WoW, not feminism.
That inept moron should have been fired after WoD but they kept his dumbass on because he's good at beefing up the time played metric for the stockholders.