There's also just three people on each team, because you need extra room to go flying across the court to dropkick the ball without accidentally kicking a teammate's head off his shoulders. It's like break dancing in the air, except instead of jumping to the music you've memorized, it's to the speeding ball coming at you at 2,000 MILES AN HOUR (estimated). The point is, it's really, really, really, really hard.
Which might not be the right word to use with all those crotches on the screen.
Malaysia's prime minister tried to make this an Olympic sport a few years ago, but the proposal didn't really go anywhere. Are they afraid of sepak takraw? Good. They should be.