Dallas lost by multiple possessions. At the two minute warning Dallas needed a field goal, an onside kick recovery, and then a no-timeouts TD drive to have a chance. They got none of those things, and getting that one yard doesn’t solve all of them.
That missed call was big, but it wasn’t close to the biggest ref blunder of the game. You still had 4th and 1 which you went for. Had you executed that play better, this 1 yard wouldn’t even have mattered. It didn’t kill your drive, 4th down did. But still, it could have saved it, and it was a big missed call.
But 2nd and 9 Ceedee goes for 16 yards because Tony Pollard blocked James Bradberry in the back. Block in the back is a 10 yard penalty:
That’s a 26 yard swing! The refs gifted you over a quarter of the field. That put you well into the redzone and you basically walked in for the touchdown. Call the foul and you’re out of field goal range and staring at 2nd and 19. Based on how Cooper was playing last night, you’re probably not picking that up. That was 7 free points because of that “drive”. The 1 yard play that didn’t even kill your drive wasn’t close to this. End score should have been 26-10