Bingo! I think this is correct. Have you actually seen any workers? The ones in the video are the winged reproductive form, virgin queens and drones heading out to start new colonies.
I would be really concerned about the integrity of that stand. Whether termites or some weird carpenter ant, when you see a few or a few dozen winged ones, there are many hundreds or even thousands of workers hidden inside. And when you see a little hole that they made for the breeders to escape, there are likely large areas of honeycombed wood beneath the surface.
I'm usually the guy telling people to relax when they are freaking out about some harmless bug, spider or other little critter in their tanks or homes, but I think you have a real problem that needs professional appraisal and attention, sooner rather than later. Good luck!