Females topping i assume are not negatively affecting his business financially, so guess he would have not need/interest in changing.
Perhaps i am reading incorrectly into the situation, but could not the originally feminist phrase 'Behind every great man there's a great woman' be a factor, perhaps his likings or expressions are coloured in some way by that of his lady, or indeed he himself just has liking for female led interactions.
I can only comment from a UK perspective but in these woke, politically correct etc etc times, the 'selling' of Fm/Ff topping is more acceptable than Mf to those who get offended by such matters
Anyway i concur with this Gentleman's view "he believes guys are more often the uglier, seedier side of life that instigates the vulgarities of sexuality, suggestive that women are purer and don't have any darker desires themselves" a very wise and insightful man indeed..........

I guess to sum up i take the view his house his rules.