Classic author projection, that's always my theory in those cases, and it leads to those disconnects. Redo of Healer is much more self-aware in how fucked up it is. I still don't like it, but it does have that going for it.Dude wants to have his cake and eat it too.
This manga though, it seems a projection of the author's experiences, including mother abandonment issues. It seems too on the nose not to be.