That the AI's thinking might be more advanced than ours is not in dispute. What's different about humans->AI compared to cockroaches->humans is language. Imagine we take our library of congress, with 50M books, and create a cockroach version of the library. It's a totally pointless exercise.

Now imagine being an AI and creating a human-readable library with 50M AI-written books for us to read. They could easily do that. And then create 50M more, again and again. And they could read every book we wrote. And forget books, humans and AI could have hundreds of millions of simultaneous real-time video conversations between humans and AI, forever, on any topic.

So being a human in an AI worlds is nothing like being a cockroach in a human world. Sam Harris used the same analogy but said we were ants instead of cockroaches I've heard bacteria also. I think people trot out these bad analogies strictly because it sounds dramatic, and being dramatic seems like good way to get people's attention. Or else they just didn't think it through.

Human language is a Big Big Deal. It's a massive piece of cognitive technology. Any intelligent species with language is in the club and they can communicate with all other intelligent species -- even if those species have very different cognitive capabilities.