It reminds me of CGI in the 90's. Everyone was so astounded over the quality of jurassic park and toy story, the rate of improvements was mindboggling. Predictions were made that in a few years, actors and movie studios would be obsolete. But in the meantime, audiences started to notice artifacts that were not apparent to the untrained eye - CGI was actually ugly! And here we are 30 years later - actors are still on sets.
but the sets of today aren't the sets of the 90's. sets were giant green screens for a second, now they're giant TV's. they're still on set, sure, but things have changed.
I had a similar reaction. We can still detect AI-generated images after years of progress; I think it's hasty to say they'll be indistinguishable any time soon.
Thing is, they don't have to be indistinguishable. They just have to be "good enough" to be a major disruption to that market. And it's not a particularly high bar.
Sure, just as tv shows use obvious CGI for animals, explosions etc - it's cheaper and more practical. Particularly background music that needs to be licensed for ads and such is very likely to be disrupted in the next few years.