I think that's partially true. The difficulty is in establishing the balance between "game flow" and "accuracy." The refs are human and are going to make mistakes. If unlimited challenges were/are allowed, you'd have coaches challenging plays just to give their offense/defense a rest (or "rolling the dice" in the hopes of a reversal of a detrimental play) and the games would last ridiculous lengths of time. So while the goal still is "to get it right" (whether that's precipitated by the fans or Vegas's desires or not) still is the underlying premise of the system. The challenge flag system is a "compromise" to maintain "game flow."Mothman wrote: If the goal of instant replay was to get calls right, there wouldn't be a challenge flag system in the first place. The entire system is in place to placate fans and gamblers.
One can make compelling arguments against that method, but I still believe that's the main purpose of replay.