There is really no point in turning off the lights if you can't control it yourself. Unless you're Amish and want to level th playing field. Somehow it must have gotten out of control. The pendants could be insurance to make sure the power is not off forever, but I' having trouble seeing what they are waiting for.
My guess? The people who have them want nothing to do with Randall. Not to mention you now have goons like Monroe and his boys trying to get ahold of them for their own agenda.