I lost my picture for the cards, due to living in a foxtel dead-zone and having to rely on dodgy malware-laden internet streams. So I didn't see the incidents. But a quick survey of various forums suggests the Biggar yc was a bit harsh.
If so Gatland will love it. He'd love a win more, obviously, but failing that a controversial ref decision after a 0-14 lead is writing his presser speech for him.