There's a few schools of thought here. I've asked the ownesr of the pool halls that forbid it. The responses were damage control.
One believed it damaged the cloth making it not last as long, another was slate damage and another was ball damage. The response I agreed with (as the first 3 didn't make sense) was harm to other patrons. If you can't jump right, you practice if during that practice you shoot the ball of the table, somebody could not see it and trip on it and then there is a lawsuit. As far as tourney not allowing, I'm not sure why.
I buy damage to cloth reason.
A suit, as you described it, would have no chance of losing for the room owner. How would the owner be at fault?