Just to set the record straight on the CowBOYS / Lions game, the Refs had multiple errors (as usual). Linked below is the complete commentary from Adam Schefter where he brings up the erroneous tripping penalty that was called against the CowBOYS when it should've been been called against the Lions (somehow that portion was left out of the other link posted above). This was the drive just prior to the Lions scoring their final TD. The CowBOYS were penalized 15 yards instead of 15 yards being added to their run. Get that call correct, and the two-point conversion attempt never happens.
"The latest controversy surrounding referee Brad Allen and his officiating crew -- involving an overturned 2-point conversion by the Lions -- may have been avoided if not for another missed call on the Cowboys' previous possession.The Cowboys owned a 17-13 lead when they intercepted Jared Goff at the Lions 29-yard line with with 2:05 remaining. Tony Pollard's 7-yard run on the ensuing play was called back after Dallas tight end Peyton Hendershot was called for tripping, setting the Cowboys up with a 1st and 25 on the Lions 44-yard line. Video of that initial first-down play, reviewed by ESPN, showed that Lions defensive end Aidan Hutchinson -- not Hendershot -- should have been the one flagged for attempting to trip Pollard. The NFL has not commented on the tripping call mistake as of Sunday morning." -- Adam Schefter
https://www.espn.com/nfl/story/_/id/39215679/officials-missed-tripping-call-lions-controversial-penalty
As far as referee favoritism towards the CowBOYS, that couldn't be more incorrect as they've been the most penalized team in the league for most of the season. In fact, one of the most egregious referee issues that has been discussed for several weeks, including during Saturday's game, is that Micah Parsons, one of the most dominant players, has not drawn a single holding penalty in over 10 games. This is despite numerous video evidence of downright flagrant holding against him.