The evidence that tends to sway me are the themes of the game surrounding blood and family; the first lines of the game are a retrospective by the MC about family being the people who support you and all that good stuff, as told to him by Neil himself, but how exactly is that relevant to the MC's story when Neil is then immediately introduced as a super great biological dad who has never let him down? The theme of 'Family' is literally the first word of the game, but the MC is actually the only main character in the game who has a relatively drama-free biological family. Maya, Josy, Jill, Bella, Sage, Quinn - all of them have been shown to have problems with their families, their dads, moms, adoptive parents, sisters, husbands etc. The theme of 'family' fits all of them much more than the MC, except for the potential of a big secret in Lynette's diary - but what possible secret could be relevant to the theme of 'family being those who support you and not those who share your blood'? Because again, that theme fits almost everyone except the main character of the story, the guy who literally said those words - what could make those words relevant from him, who already has a fantastic biological dad - the best dad the story has shown us?