2 things sealed it for me
The Dez catch against the Packers - (which was so bad and there is no way the league could operate like that in the future, so they had to CHANGE the rule AFTER they screwed the Cowboys). The thing that will always bother me is that it was called a catch on the field...and then overturned. They at least would have covered themselves if it had NOT been called a catch on the field. Dez was NEVER the same after this!!!
The other thing was against the Packers as well (and yes...that is a recurring theme. The league does like its Packers, Steelers, Patriots and Giants)....but I digress. But anyway, I believe it was 2016 playoffs...we were 13 - 3. Had homefield advantage throughout...and a rookie Dak and Zeke were young, spry, and playing fearless football. I believe we got knocked back on our heels early that game...but then we got up off the mat...and started to ball and momentum had started to shift and we had found our rhythm. I believe we had just converted a big 3rd down that put us in the redzone....and the ref said Terrance Williams had entered the huddle...left the huddle and then reentered it. I believe the broadcast team said it had NEVER been called or had not been called in like 20 years. And when you watch the replay....HE DID NOT EVEN DO WHAT THEY SAID HE DID. It was clearly something the refs came into the game looking to use at the "RIGHT" moment!!!!!!!!! Please somebody have a replay of this one. All I know is I kept saying "You can't make this stuff up"!!!! Could the NFL be a little more discreet? I mean, don't be so obvious about the outcome you want!!!