its really more of a concern to japan. Over there anyone can just walk into a shop, buy the airsoft revolver and use it as a "one time pistol". It's not that expensive over there and its readily available.
If anyone in Canada were to want to do that i'd just laugh at them. They're gonna spend easily 4-500 for this revolver, wait about a month or two to get it here, then use it once. At that point they'd be better off getting a real gun.
Edit: This doesn't mean i'm telling anyone to do this, I'm just saying it's a dumb idea.