I'm pretty sure that's SOP for Nvidia conference demos.
Was in a breakout after the main Jensen presentation and the engineer was talking about how they were fiddling with K8s to get the demo to work right, the night before. And this was the money demo in the middle of the presentation.
On the other hand... I actually kind of like a company that half-asses demos. It suggests they're spending their time on more important things.
They actually say that’s what happened in the video on it.