First year guy is correct. Sure, it's in the rulebook, but so is every other foul that is guided by philosophy. Similarly, we would not want to have a measurement after a 1st or 2nd down. The philosophy I use and it's incumbent on the wings, is "either they made it, or they didn't." Obviously, 3rd and 4th downs are more critical, but having unnecessary measurements just because it's requested will lead to long games and is the sign of an ineffective game manager.