Interesting read at tgdaily, page 2 reveals some interesting uses for such computing power. I'm a bit skeptical though, if this could be done in realtime on these CPUs then it should be doable now in non realtime.
Check out motiondsp.com for some info on video cleanup. In the tgdaily webpage, they mention cleaning up 320x200x15fps cell phone video. That is pretty low bandwidth... nothing compared to 1920x1080x24fps video (51.84x times the bandwidth). And then there's next-gen HD at 60fps).
2- This doesn't necessarily look like the answer for video editing.
Specifically the discussion about enhanced motion stabilization that could patch in missing parts of the frame from other frames and correcting blurred objects by identifying the same object from other frames and patching that back into the frames where it's blurred.
If either of these can be done then I don't see how it's tied to having 80 cores or 4 cores, it's a question of the modelling code. It might take a very long time on a slower CPU though of course.
I think what they're saying is that a 80-core CPU will be faster at that task, compared to 4 cores.
Or, the task is better suited for 80-core CPUs rather than 4-core CPUs. (And of course there are some applications where the 4-core CPUs are faster or better in other aspects.)