Aaron Judge has had Covid so has some immunity (he could get it again, just like a vaxed person can get it), is presumably tested all the time, would be tested twice as much if he came to Canada and would be confined to his room.
People are making a flawed argument. If there was some player, that was completely Covid naive, not being tested for Covid, allowed to go out on the town, would that guy be a danger to the community? Probably.
Some guy, has had Covid, tested every day, confined to his room, and all at risk people in the community double boosted. Is that guy a risk to the community?