In that case I really think it would be easiest if the nfl admitted that their enforcement was poor. The generally did that when they decided to tighten up defensive holding calls this season.
I agree that it wold be the right thing to do, but far from the “easiest” for the NFL to admit to. I think it would be more likely that the NFL will amend the rule to read that ‘footballs will meet the standards set out by the NFL AT THE TIME OF TESTING AND CERTIFICATION prior to the beginning of the game.’ After the game starts, atmospheric and temperature changes will effect the footballs in barely predictable ways.
Or better still, footballs in play will be routinely and randomly checked throughout the game on the field. Any ball found out of tolerance will either be corrected or removed from play.
And finally, teams will not longer be allowed to provide their own footballs, reversing the rule applied for by Tom Brady and Peyton Manning.