It means that being a live actor is less of a differentiator. Of course great movie stars will remain, playing live, or animating computer characters, no matter. But simpler works like ads featuring a human now become more accessible.
Among other things, this will remove most entry-level jobs, making senior-level actors more rare and expensive.
I think this means that personal branding is going to get even more important than it already is (for example, people watching movies specifically because of Ryan Reynolds, or avoiding them because of Jared Leto)