To be fair, female protag games generally don't do as well financially as male protag games, of which those devs make. LP is still much larger than most other female protag games on Patreon. And a couple of those developers are also on their 2nd game (Carbodis/DRP) or have made multiple games (ISCTOR). That's where devs make their money, the 2nd game. Built a solid base on their 1st and (hopefully) improved their skills for the 2nd.
However, this game still underachieves. It's literally the only notable mom MC game, as far as I know. His current patrons are patrons because of anticipation of what could happen, not what has happened.