Very interesting, the game is very dependent actually on what you see as morally good. Some people may see not doing anything bad a good thing! Hence some people may not align with that game choice.
I think you forget the aspect of the narrator in the game. The narrator talks about the requirements to reach "Eden". The player can reach these requirements by doing obviously "immoral" acts. In the ending sequence the narrator says that you beat him because of your own morals(ie. the character playing through the game the way you chose) or maybe because you saw through his lie of the existence of Eden.
Perhaps the post scene was an oversight but in some people's playthroughs you can see how it may have made sense no?
Anyway, please understand this game in the context of a 7 day game jam that we entered late 1 day and a half late into. Sad that you didn't enjoy the game.. will attempt to improve it outside of time constraints.