Yeah, the eternal whining about overtime b/c of salty fanbases is extremely annoying, but personally, when it came to rule changes, I was most pissed off at how they implemented replay assist.
If a camera on the field catches that a penalty was obviously not a penalty, the league is free at their discretion to radio the refs and tell them to pick up the flag, feeding the footage to the broadcast team. But it can't be used to challenge calls or demand a review.
Because that's what fans wanted when asking for more use of modern tech towards calling - a way that protects the ego of the referees' union and gives the league plenty of discretion to manipulate games, in an era where they're more closely tied to Vegas than ever.