y'all are right to ask these questions and I'm not here to defend him but my guess is the scenes with Christian and his mom, Sarah and MC's aunt were before Patreon went balls deep into restricted incest content but now Patreon is going hard on games with such content.
As i said before there's a couple lf games that were killed with Patreon's incest policy and it's not only MnL that was afflicted but Summertime Saga as well as Dreams of Desire.
Like i said I'm not trying to defend the dev but I'm trying to understand why if he knew Patreon would block incest stuff he didn't create a secondary account on SubscribeStar, where incest stuff is not that restricted also he promised a lot of content involving Pussy Fights but so far i haven't seen it in the new update but the main reason is that we all were waiting for Lucy's content(finally) with MC's balls deep into her but the dev blue balled us in a big way that even I, that I'm not subscribed to him, feel somehow betrayed by him because Lucy was and still is in my opinion the most desiderable character in the game.