The NFL is the most watched tv show in America every single year why keep messing with the product?!? Leave it alone. The players aren’t even in favor of this rule the NFLPA already has spoken out against it.
In Rugby it's the TMO (Sky judge). Works very fast and fair all of the time. There is a discussion between the Ref and TMO which is broadcast to the spectators. This takes on the average 60 seconds.
NFL players just need to learn how to tackle properly. Australia's rugby league has outlawed the hip drop and it hasn't hurt defences, it's a play that would literally happen a couple of times a week now across 8 games because the rugby league players know how to tackle efficiently and safely.
Your supposed NFL expert doesn’t even understand the rule. If it’s kicked into the end zone and not returned it comes out to the 30, not the 35. Great job staying on top of the rules changes.