This issue with mc’s mom was already implied in the beginning. This is more like sweeping up the shit that has been shat out and left on the corner for ages while MC does hit thing. Unfortunately it means you have to deal with said shit.
Gods, I was thinking about how badly this series was jumping the shark, but than this chapter proved whatever way I was going to say about it, was in itself going to be blown out of the water, with how trash this series is wrapping up with.