Pete Carroll seems to think that the NFL has ruled that the call in the end zone was correct:
"We were fortunate the call went our way. But you've got to say the league reviewed it and said they agreed with what was called on the field, they just missed the pass interference."
I don't think that's exactly what they said. They basically said they didn't want to get into whether the call was correct or not but that they supported the system and that they wouldn't suggest the replay booth overturn that call