People died. People die often. If they learned to Apparate away and not play the heroes, things wouldn't happen. Besides we have spells around the club and if werewolves tried to get in, I think we all know a hex or two. Just remember what the Carrows taught us.
Wouldn't it be right if it were someone else dying? Potter is dead. Plenty of people have died before him. We still have a business to run, but we can wait a week if you like.