I used to love to watch One Pocket. But then I had to go cover an event and had to report on a match between (if I remember correctly) Buddy Hall and Marco Marquez. It was a race to three games. The first rack took seven and a half hours and it ruined me for the game.
Actually, I could love it again very easily with the insertion of a single rule: "It is legal for the players to push the balls uptable, away from their pocket, as a defensive strategy. It shall also be legal for any fan to shoot the player who does so."
I do appreciate the defensive ballet of One Pocket. But there is a limit to how long one's butt can sit on steel bleachers.