Thanks for playing. Just read the review, was a cool read! You raised some good points. Glad to see I managed to make a puzzle game that a puzzle hater such as yourself did even somewhat like.
Quite interesting that you found it to be a labyrinth. It is actually very linear, all the branching paths come to an end or loop back to the main path quickly. The original jam version only had the first terminal room and it served no purpose at all really, it was added in for the illusion of non-linearity (knowing quite a lot of people would miss that jump anyway). So I guess my plan to make it seem less linear really worked out if you found it to be a labyrinth and even somehow managed to get lost in it.
You don't actually need all the terminals for the ending. How many did you find? Did you completely miss the hint picture with pieces missing? It is probably a flaw in the puzzle design there that it is only shown after a 4 second delay after triggering the machine or with some specific commands. So if the player writes some command before that time is up, they might end up missing it completely.
And when it comes to your last question, the answer is simple. Someone who's mother decided to name them that. Or it actually was the lady who lived as a neighbour but that's a whole another story...