If somebody posts a video of a dog and says it proves cats exists, what should I believe? A video proves what’s in the video, not any claim made and posted with the video just because they’re together. And personally I like the videos for more than just “proof”, for example I learned a bunch about the console AI from @Stan’s videos, far more than a short clip would show. Having a reasonable conversation involves having a common frame of reference, that’s all I’m asking for…
If you’ve noticed, I’m questioning the devs there too. Again, just trying to understand things better. 
EDIT: And they just responded, and clarified that it’s NOT a cascade issue.