Your point is nonsensical. It's like blaming the gun for a murder. A rule is only as good as its enforcement. The ability to challenge PI calls is a good thing. It gives power to the teams to correct a wrong judgment call based on video evidence so that the NFL can't mistakenly put the WRONG TEAM in the Super Bowl again. This HOPE presupposes that the NFL WANTS TO GET IT RIGHT. I, for one, am certain that they do NOT WANT TO GET IT RIGHT. They want as many judgment calls as they can get so that they CAN CONTROL the outcomes of games especially which teams get into the biggest TV event of the year.
The rule is great. The people running the NFL are aholes.