I don't think they would go 0-4 in those games.
Other than Michigan, who beat them by 39, and Pitt, their next toughest road game was this past weekend. They needed every one of the half dozen turnovers from Indiana to win that game. I give them all the credit in the world for beating OSU (thou it's not as impressive as winning at Clemson), but road wins against Purdue, Indiana, and Rutgers is really not all that impressive, and none of them are as good as the three teams Pitt has lost to on the road. Point being it's very likely PSU loses to all those teams as well.