An idea that I don't see brought up at all, is the idea that the pizzaplex is not constructed well.
Remember in fnaf 6 when the tutorial unit said this?
"There may be times when you purchase something of questionable quality and we don't blame you. Cutting corners is just good business."
Keep this statement in mind whilst I bring up my next point
As someone who's taken an engineering class,, when you are constructing a building, there are a VERY large number of codes (rules) that you need to follow for every conceivable part of it.
Fazbear Entertainment would probably find it a lot cheaper just to pay off the people inspecting the plex, then actually put money into making sure everything is up to code.
They would also try to construct the building as cheaply as possible, trying to "cut corners" wherever they can. They use substandard materials, contractors that don't double check their work. They build the mall itself over the subterranean remains of their old restaurant, despite this making the ground very unstable
This all works in my mind because Fazbear Entertainment has been proven to follow the "be as cheap as possible" approach many times in the past.
It's why in my mind, I don't have Gregory live at the pizzaplex after the 3 star ending. Freddy would calculate that it is statistically safer for Gregory to live in his box than at the plex. He instead lives with Vanessa.
Honestly, i agree with the idea! Most folks makes it that the kid lives with Freddy bc well, Vanessa isn't the safe option in most aus, she's at most, not the good guy
Some even make so that she isn't saved yet. But doesn't make the plex safe either. It can somewhat work, but he'll need constant vigilance and all that
He is someone who can take care of himself tho, and has been in most areas of the plex, so i belive he would know what places to avoid
But the concept of how unsafe it is, still stands. Which is why i dont head on with him living on the plex, not jyst bc i like sibling Vanessa and Gregory btw