Well, upon further review, it seems intentional to me, though it's definitely not a punch. It looks like IT was genuinely signaling something to one of his teammates but then Schroder's head happened to suddenly be in the immediate neighborhood, so IT took advantage and tried to get in a little cheap shot. I don't think it warrants a suspension, and I certainly hope he's not suspended, but I think he will be. And I think that if that happens, the series is pretty much over.