Hmm.
Okay, so Mata Nui is actually a giant flying robot space-ship. One day, the Makuta, his main troubleshooters threw a spanner in the works and Mata Nui crash-landed on a water-planet. Then his automated repair systems, IE the Toa, got out and gave him a jump-start. Only now, the last remaining Makuta has become like HAL and taken over the ship.
Right?