There's a HUGE problem with the narrative here. I have zero doubt the refs screwed this up, but I also have zero doubt that #68 was never actually ANNOUNCED as eligible, and since he wasn't, the Lions should have known pre snap there was a problem. It's an absolutely absurd assumption that the play would have worked exactly how it had if the Dallas defense is aware that #68 is the eligible, NOT #70. (they covered #70!) And as others have pointed out, why did three different players approach the ref?
To me this is akin to the play in the Baltimore SF game where some folks were screaming their heads off over LJax tripping over a ref....completely ignoring the fact that LJax was spinning every which way reversing direction multiple times RUNNING 25 FULL YARDS backwards into his own end zone.
This was a very impactful mistake, but ultimately not a super egregious one given the whole scenario.