On pointing to the blackmailer issue:
Don't forget it's interactive game. It's already going into 3 divergent paths.
If creator would like to bait us or feed us properly with multifacet red herrings and shit, natural decision would be to point in 3 different directions.
Just imagine that in Kitten route the big reveal could point to someone else than in Cuckquean route or Siren. We could get 3 distinctively different blackmailers, depending on our game style choice.
Perhaps in the alpha route Delilah would become the blackmailer and ultimate showdown will be concluded in serious duplo-dicking and bitch-slapping her with futa-cock for her misbehaviour and/or finishing love route with her. But in other scenarios, when playing sexually passive Ashe, someone more dominant could fill that role. Because why not?
Overcoming the blackmail should serve some story purposes anyway, perhaps even accepting sexual roles Ashe takes through the game, so blackmailer persona could be a catalyst tied-in with these choices. This way more gamers' suspicions could turn out true.
On new update:
Yay, I'm bought. Cuckquen future looks especially bright: