The redzone pick by Dak hurt, but he played well overall. The slow start by the offense and then the overall fail by the defense was what killed us.
Besides the things you listed, I think the main difference between the 2104 and 2016 games was the location.
It's not even comparable to play a home playoff indoors vs on the road in January at Lambeau. The home field is supposed to help the home defense (noise and pass-rush wise) tremendously.
The only other times Dallas has played a non dominant defense in a Home playoff game was last year vs Seattle and in 2009 vs Philly--whose D was decent but not great like the peaking 2007 Giants or the dominant 2014 Lions Ds were.
In that 2009 game, Dallas was leading 34-7 early in the 3rd period and Romo and the offense were heading toward 50 points and 450 yard passing before they completely shut it down for the easy win.
I want Dak and this Cowboys group to get home field advantage for more than one game. That was the recipe for New Orleans' SB win and often is the case for others.
Go Cowboys