A couple of points here: The exact measurements of the footballs before the game were never written down. And there’s no indication that the measurement of footballs before games has been an exact science. I witnessed one such measurement in 2013,
before the Baltimore-Chicago game, and official Wayne Mackie at one point stuck a needle in a football that was supposed to be at 12.5 psi. He measured and said, “Twelve and a half, close enough.” What does that mean? Was it 12.36, or 12.62, or something other than exactly 12.50? Regardless, no judge anywhere would bring the hammer down on a situation like this—inexact measurement before the game, an allowance of the footballs to be 11.32 psi, and the balls found at 11.30, on average.