I saw troops being issued gear in two different videos. I also saw a couple of videos where troops were moving around outside, but I'm also very aware in that I couldn't see them well enough to identify them by their country of origin. No one could.
There was no proof that North Koreans were shown in those videos.
As far as I can tell I'm feeling about this the way that our State Department is feeling about it. The State department has expressed that it would be a concern if it's real. They don't seem to think it is real, not yet, they haven't seen proof of it is what I would assume.
Remember the movie Wag the Dog? It was about propaganda.