Vikings No Call, Integrity of the Game and the Saints

Soccer has VAR (or video assisted referee). The application is not universal in all leagues, but in LigaMX, the VAR can communicate real time with the ref on the field, and say "I saw this", and it's up to the ref to review the play. In soccer, it can kill the flow of the game, since sometimes play continues, then the game is stopped to review a previous play, but in football, a VAR system would have plenty of time to look at replays before the next play.