#4 Shoulder must be on the mat in order to be pinned
This one is responsible for a number of sketchy finishes over the years, most recently the WWE Championship match between Randy Orton and Jinder Mahal at Backlash 2017. The Viper's shoulders were clearly off the mat and yet he was pinned as the referee counted to three.
If you're going to keep using this rule over and over again, at least make sure you get it right. We have seen this one over the years even with simple finishes like roll-ups. And, it isn't even a small thing, it literally pertains to the very end of a match and we can all see replays showing the referee being in the wrong.
Fans drowned out a popular wrestler with 'She's a racist' chants recently
Again, if the WWE insists on persisting with this farcical rule, at least add some storyline elements to make it look convincing. It's really not that difficult, WWE.