The point of the prompt is that in the classic game you don’t know what’s behind the doors.

But in the variant of the game used in the prompt, the doors are transparent.

So in this variant of the game you already know what is behind all of the doors, meaning that you will already have been able to choose the right door, and also meaning that “revealing” what is behind one of the doors does not change the probability of what is behind the other doors.