I don't think the boycott mob is a unique problem to the human. Could just as easily end up with an anti-AI boycott mob. Neither bet is fully safe on that front.
The issue is for companies that just want to sell clothes, without also being forced into a wide variety of shallow, poorly thought out political stances that could blow up in the companies face. Note just how much of this article is the 'model' talking about what is basically politics. They're half model, half politician. This is 100% liability to most of their employers, who ultimately just need a good looking mannequin to wear some clothes or pose seductively for advertising.
A GAN generated face textured onto a convincing 3D model means you can just keep clicking or adjusting until you got a truly beautiful model, without needing to pay extra for it, and you know your exposure is capped in entirely predictable ways. This model won't unexpectedly cause trouble for you, or demand you take a particular stance you may not agree with in order to employ them.
I don't see the average consumer caring whether the model for their perfume commercial is flesh and blood or CGI. They already don't care what the quality of life is like for the test animals for those same cosmetics. Plus, it's easy enough to create fake personal social media profiles to pretend like the persona has a real history.
A GAN generated face textured onto a convincing 3D model means you can just keep clicking or adjusting until you got a truly beautiful model, without needing to pay extra for it, and you know your exposure is capped in entirely predictable ways. This model won't unexpectedly cause trouble for you, or demand you take a particular stance you may not agree with in order to employ them.