Every now and then I get an idea that I think will be fun. Then I go through with it.
They aren’t always the best ideas.
There are times when I just want to run a game with a moral, a message… a game that teaches something important that the players will take home with them after the night is over and the dice put away.
I think this might be exactly the right dungeon for such a game.
Dyson's Dodecahedron 
Brilliant!!!
Wonder what you are trying to teach your players with that…
Maybe you could have that long middle passage instead be a drawbridge that unfolds from the entrance chamber…
“As written by E. Gary Gygax.”
I kind of want to put this dungeon in my Keep5e game and see if the player who always maps ever figures it out…