I think this might ignore something else video image generation is good for which is propaganda.

Fake or highly edited video of strikes in Iran, random video circulating online proporting that the Netanyahu hand videos, and random videos of Israeli strikes on Palestine (which I assume are to discredit actual video of the atrocities happening there), have been going viral for awhile now.

Advertising is probably one of the few industries that can use image generation and video generation via AI LLM in a way that would actually cut costs but the downside is people are increasingly militantly against ads and they are against AI generated content including ads, so this isn't likely to become the reality any time soon.

If the McDonald's ad and others like it had been better vetted for AI uncanny valley aspects and hallucinations that cause trucks to transform into short bus versions of themselves mid ad spot etc, the public might not have paid attention at all.

And lots of those same advertising firms are using AI to their benefit behind the scenes to purchase ad space. But using AI in ads in a public facing way is a dream out of reach for them for now because they bungled it so bad.