I mean, between SynthID and C2PA don't you already have labels and watermarks that covering a lot of major players like Google, Adobe, ElevenLabs, NIVIDEA? No real concern about false negatives there.

As for false positive, the most straightforward path seems to be to let stuff slide unless you are really sure. Maybe that slightly rewards players like Kling because they keep the invisible watermarks for their own use, and that of the CCP,but not third parties. NBD.

It's not like catching everything is that important. YouTube isn't claiming this is perfect. And I don't know that anyone need this to be perfect. It's not like even the best photorealistic video creation tools don't have plenty of tells anyway.

This doesn't seem like ZeroGPT at all. Having a flag or not having flag on a YouTube short is low stakes. Its not like it's being sold as a solution for something high stakes like academic grading.