That is precisely why people in this thread repeatedly emphasize its an entertainment show first, car show second.

There is a story arc for the show and car reviews. Nissan may have a well designed system to limit blackouts, but in this case it didn't play well with the entertainment/comedic elements of the show.

Honestly, do you think this is playing to the facts? http://www.youtube.com/watch?v=HrZy87TmDcs

Do you think afterwards they should mention it wasn't real?

They have a narrative, and entertainment/comedy takes priority over car reviews. It only seems to ruffle the feathers of electric car/environmental group - and I posit it has little to do with "presenting the facts" (where is their outrage about the claim that the stig can blink horizontally or is non-human?) and all to do with advancing their agenda.