First. I had to deal with concussions.
I mean, you just quoted my exact reason why this case is NOT like any other case out there, its risk assessment. A single concussion is manageable, two in succession is not good, and would require special helmets from medical professionals, Peter Mueller is an example of such bad luck; three in close succession is seriously career threatening. Kudos to Bo for coming back and reclaiming his life, but I bet he is well aware what the fourth one is going to be like for him. doesn't help that he also insinuated that there was a possible 4th one earlier in his career in interviews.
So no, not everyone is as high risk as Byram, esp not at the young age he's at. I wish him a long career burning down vancouver villages, like Crosby. I would rather he stay away for this sad sack franchise with the Geoff Courtnalls, Bures and Ferlands. I mean you guys had your share and should know the risk. One of my favorite Avs is Deadmarsh, and Kariya too, multiple concussions definitely played a part in their latter years.
...and who can forget Steve Moore?