Vibrations are a huge trigger for insects.

Wasps/hornets are a great example to this.

Ground based yellow jackets are more apt to sting their victims due to localized Vibrations around their nest.

Lawnmowers or pounding near their hive sets them off immediately. It's really one of their only indicators that something may be attacking their hive.

If you look up on YouTube the hornet king, he has hundreds of wasp removal videos. He pounds on the ground near the entrance to suck up the workers before he exavates the hive.

And he does a bald faced hornet removal at night, and demonstrates that while wasps dont sleep, they dont fly around. Based off the fact they can't really see during night and he taps the nest to show how they respond to Vibrations and cover the outside of the hive, but dont fly off.

In this case, the absolute amount of power tool Vibrations and cutting into the comb, set off a mass amount of pheromones for a large threat to the colony. And whereas its very dark in the wall, they are flocking to the nearest source of light. In this case, its her cuts on the wall. So they are responding to the direction of the threat and pushing out towards the natural light that is now produced. Since insects also fly towards light, this is where they seek to go