Oh man, I suspected it but to have it confirmed really sucks.
I just noticed their post had 1.1M views and they still haven't updated the story or left a note.
If you're thinking about what to do next - try a DMCA to them and copied to abuse@ for their hosting provider. Ditto same report to their ad networks or exchanges (that can sometimes be really effective in changing behavior)
The original article is at [1] (they link to it, but it's kinda easy to miss); the post on Bored Panda does contain additional photos.
[1] https://www.rferl.org/a/the-mammoth-pirates/27939865.html