Bureaucratic arbitrariness. Abuse of power. Does it matter?
It's exactly the same reason that "they" decided for all 330 million Americans, that they could not choose to view most of the video shot that day.
Arbitrary and capricious. Abuse of power. Bureaucracies do that. Very well. If allowed to.
Or maybe it's just not true.
Just a thought, which apparently didn't occur to you.