They are happier with 1M/1F because at least the number was equal and it was both options were problematic. With the 1M/3F options we get on three houses, we not only get an imbalanced between the number of M|M and F|F supports, but the reasons for that imbalance just completely ticks us off:
1- The fact that Alois and Gilbert S supports are not same sex marriage supports like Lindhardt (and you even marry a WOMAN in Alois ending) - queerbaiting to the extreme.
2- The fact that even if Alois and Gilbert were in fact options and the number of same sex supports became equal, the LGBT representation of the game would still be criticized because Alois and Gilbert are two married old men, who knew the protagonist since birth.
3- The fact that the high number of lesbian supports is most likely linked to the fetishization of lesbians.
4- The fact that the lesbian options are more linked to the plot of the game.
etc etc