If you've ever seen power components fail at a substation, you know it can be quite the light show. 69 kW can make quite a bit of light in a short (pun intended, couldn't help myself) time. It could definitely account for why all the lights at the location the video was shot at acted the way they did. Pic somewhat related.

https://www.wvlt.tv/content/news/Over-eight-thousand-customers-without-power-in-Crossville–504616971.html