I dunno, I think the video is kinda suspect myself. it would have been relatively easy to show the card sitting in the system and that's not in the video, then you have the card description in the device manager, which is a highly unlikely description IMHO, particularly for an engineering sample.
I'd expect "NVIDIA GK107 ES", if that for a descriptor, not "NVIDIA GeForce Kepler GK107 (Engineering Sample)"
And since they were in Device Manager anyhow why didn't they show a screenshot of the Device Id? Not that any of the Device Manager stuff means squat diddly, it can all be very easily forged.
from the Video
from my own Device Manager
Adam knew he should have bought a PC, but Eve fell for the marketing hype.