This is the latest example that sparked it off again, but stuff like this has been going on for a decade. Many animators and vfx artists who work for high profile companies never get the final versions of their work and sometimes work on locked down servers where they can’t easily copy the work for themselves. They are at the whim of the company to provide them the files. Usually they are ignored so the artists resort to pirating the work to then edit it down and showcase on their websites and reels.