Exactly the point. You have no idea what the playcalls are, what the QB's freedom to change them is, how many different calls the QB can make at the line, etc, etc, etc.
"Playcalling" is probably the dumbest things fans complain about. We know this because it's a complaint that's nearly gone extinct now that we have access all-22 analyses, without which we can't even begin to guess at what the objective of any given play was. But even the most diligent all-22 analysts freely admit that their ability to understand things is severely limited...by not knowing the playcall.
So, again.