That doesn’t look good
Plugging one power strip into another is a recipe for disaster, but creating an array of 50 power strips is has got to be the worst thing you can do. Power strips were not designed to be used like this, and doing so can result in an electrical fire, which is never good.
Here, there were 70 students who connected multiple devices into six power strips side by side. If experience tells us anything, the first two might be fine, but everything after that is just asking for trouble. Thankfully, their cabin didn’t burn down, but perhaps the camp counselors should’ve been more alert of the situation.