The score IS the timer. It's just not specific on how much time represents one point.

King of the hill is virtually the exact same as domination with a single control point. The JJ2 control points are too small to stand on them, and they are usually in midair. I'd rather give options that make a real difference, like spawn timers for domination and ctf, gaining gems instantly after shooting a player, and making blinking players incapable of hitting others nor being able of picking up their own gems instantly (which is why treasure results in frustrating chain fights).