Anyone think that the pig on the ground has quite a bit of domestic blood due to the short snout?
There is a lot of variation in snout length of European wild boar and so you would expect to see that trickle down to our ferals, especially considering many domestic breeds do have shorter snouts. However, a singular trait would not be indicative of how much "domestic blood" is present. It just means that trait is still present, potentially the work of just a single gene.
With that said, I suspect the issue is camera angle and age. Note that it is the smallest hog in the bunch and has what appears to be the shortest nose. Piglets have considerably shorter noses proportionately to what they will have when they grow older.