Different with goalies.
When you're a player and you have a concussion (first, not all of them are the same, each head injury is unique and different), you can skate and bump players and get back to that comfort in practice. But a goalie, he's going to get bumped, he's going to take shots off his helmet, he's going to whip his neck to the side to see a shot, get out of the way of a high shot, get up, get down in jarring movements, move side to side fast and then back up...
Have you had a concussion?
I have, the thought of the goalie movements almost makes me want to throw up thinking about while coming off of a concussion. Not many goalies look good after coming back from one. GO and look at how many goalies have had a concussion and look at their level of play after they come back.
Go look at the following:
Corey Crawford (missed 300 days with a concussion) - 3.07GAA, .901 SV% since he's been back. Terrible teams can still have goalies with solid numbers, Crawford is an elite goalie, but his numbers since he's been back...yikes. Same for Price.
Chad Johnson
Steve Mason - Last season, has been done since, no one signed him.
Michael Hutchinson - Last season
Mike Condon - last season, looks to be done now.
Andrew Hammond - 2015-16
Carey Price - He has admitted his physical side is fine, mentally he feels off.
Fleury last year was a bit odd.
All of these guys were either elite or serviceable and now, not so much. Some gone, some on the verge of being gone, and some trying to get back to being good again while some are lucky and are fine.
But here's what he had to say about his 3rd one.
https://www.tsn.ca/nhl-concerned-by-rise-in-goalie-concussions-1.1193829
More games DeSmith can steal, the better, maybe the time will help Murray get his game back on track, but to use the "Look at Crosby..." excuse, weaker than the jokes about Murray's glove hand.