While head injury protocols have improved things, it's years later when players really suffer the consequences of repeated head injuries. So while he may have passed all the protocols, it doesn't mean that he should play. They really have to consider his long term health, not just his short term and passing tests that assess people solely at the time. North has had repeated head injuries and I would hope they would have at least discussed having an extended break to try and assess longer term implications, rather than just being fit for the next game. I honestly think North will regret this decision sometime around his 40s when he has long term issues related to concussions.