Thank you for playing! I am working on an update to tone down the rng noticeably, but not altogether removed as planning ahead on where to place the pipes even with no immediate solution was intended. It's working in testing right now. I'm also going to do something to keep the golds from blocking each other next.
'Game Over' is there to signify the game reaching the ending state. We can interpret them as good or bad however.
Humanity level influences the 'normal' endings of making it to the end of the week. It's not tied to supervisors directly. Supervisors have their own bad ends related to losing varying on their likes/ dislikes. Supervisors were planned to have abilities that could assist you, but they were not planned well, and I may use them against the player instead. I will eventually post a guide to endings.
I do want to focus on adding the missing pipes, as the gold valves were planned to have multiple forms.