What and quadruple the pissing and moaning after games? Television and modern technology has almost forced this situation and the internet brings it front and center. When the casual viewer can see just how bad a call is missed, from many angles, frame by frame and zoomed in, " Just play the game, the bad calls all balance out just doesn't cut it". The Networks are finally settling in with the situation and using the stoppage to run commercials. I get peoples frustration having to wait a few minutes for the process, but personally I would rather "waste" those 2 minutes of my life, than hours discussing all the bad/missed calls that could have been corrected.
Ever since they switched to the Art McNally GameDay Central in New York to make the calls, I think they have done a good job at speeding things up AND being more accurate.
https://operations.nfl.com/the-officials/inside-nfl-gameday-central/
I would be fine with keeping the same system in place, but allow a coach to use one of his challenges on other controversial calls (pass interference, roughing the passer, etc.) and by all means do away with the rule that if your challenge is a correct one, you are still penalized with a reduced # of challenges available.