It seems like you didn't read the actual article all the way through. They are specifically explaining a series of theoretically possible events that would make

It seems like you didn't read the actual article all the way through. They are specifically explaining a series of theoretically possible events that would make it so that it is literally impossible to win even if you have perfect knowledge of what the seed is going to give you. And then they look for a seed where this series of events happens, making it impossible to win.