Ordinarily, I'm not a fan of adding to an official's subjectivity on calls, but the current situation is way too often subjective so I'm jiggy with what you propose. At least one, if not both, of the PI calls in the Pats~Jags playoff game were game-changers and not flagrant and not worthy of a 50 yard penalty. But there are those where the DB is clearly not in position to make a play on the ball and simply grab the receiver - that should be a spot foul.
I'd go all the way on that subjectivity for a couple of reasons.
Not only would I do away with the reviews, I would dump instant replay and tell the TV nets it is to their benefit. I started watching when there was no replay, it was just like being at the game, you missed it, you missed it....forced attention. I wouldn't hit the bathroom or kitchen for fear of missing the play. Fans can record it and watch a replay but let that be on them and while they do that, they risk missing the next play.
The refs get second guessed more now than when there was no instant replay. And with the % of reversed calls, it slows the game down too much with too many stops and that also affects the momentum of the teams. The refs should be concerned with getting the calls right, and not getting second guessed by some former player in the booth, and the flow of the game. They cannot create more action within the game but they can create the illusion of that. Isn't that what the no huddle does? Sure, they get a few more plays off in a game but the perception is more than what they actually get.
Those of you that are not old enough to "remember when", think about how you would watch a game if you knew the only time you're going to see that play is the first time. Doesn't that add some drama and immediacy to the game and accentuate your concentration?
And hey, I am not one of those "good old days" guys, there's a hell of a lot around today that I wished had been around when I was younger but when I see changes made that do not really mean progress, I think some of the old ways were the best. I realize I'm wishful thinking because they've spun the football out of it and tried to turn it into an entertainment medium, even convinced congress that they're not a football league.