> On top of that, Valve may be constrained in the number of units they can actually ship, so there may be downward pressure on a higher demand. We don’t know for sure.
That's the point the root comment was making: The numbers only tell us how many units Valve is able to manufacture/ship, it doesn't tell us about the demand beyond that.
So it's not clear what point you were trying to make with your "it also says" comment.