Heard a new one from FA on DEN-SMF this morning, and wondering if anyone can confirm or debunk.

My husband, sitting in row 21, was able to get power to his laptop prior to takeoff. But during the flight, no power. When he asked about this, one of the FAs said that the availability of electricity rotates to different seats throughout the flight, because if everyone used the electric outlets at the same time, it would be a problem.

Huh?? We've both been flying for decades, have 2.5M miles on United between us, and we have never heard anything remotely like this. Our BS detectors are buzzing away. But at the same time, we find it hard to imagine that an FA could be so disrespectful as to lie to our faces. Could this be true? Or could the FA believe it is? BTW, the power never did come on.

Inquiring minds want to know!