Warning: I’m not sufficiently familiar with jdownloader to offer this explanation with any certainty, but…
If you’re using it to rip streamed content, is it possible that instead of ripping the stream directly it screen records and re-encodes it itself in order to bypass end-to-end security features?
I’m not saying that’s the case here, just that it’s a plausible explanation.
It’s like they read Snow Crash, and thought “Sounds like a great place to live in!”