I say it's more realistic in that there's no aliens from outer space mucking around with the electrical grid in their downtime in the flying saucer. Here it's an army unit that has set things up. I wonder what happened to the people in the house that got burned down? I suspect because they were part of the army experiment, they managed to get out the back I guess.
Interestingly, none of the neighbors raised the ethnic issue of the mysterious neighbors if you know what I mean. That would have been incendiary and almost kind of profiling if you know what I'm getting at.