how come its a major penalty when they run into the DET punter but not when they run into the Dallas punter
What’s important is to get the call right, even if they reverse it per the rules, whatever people are saying, pass interference.
“how come its a major penalty when they run into the DET punter but not when they run into the Dallas punter”
It wasn’t a major penalty. It was a 5 yard “running into the kicker” penalty, which just happened to give Detroit a first down. Why didn’t they call it when it happened to the Dallas punter? Maybe for the same reasons that they didn’t call Dez Bryant for coming well onto the field, with his helmet off, to argue the DPI penalty in a ref’s face, or why they didn’t call Murray for taking his helmet off in the end zone after he scored. Those are both supposed to be automatic 15 yard penalties.