I like the process that goes into these "imagine the architecture of AGI" articles. It's all hypothetical, but it's really fun. But it's a missed opportunity if you don't embed LLMs in some of the core modules -- and highlight where they excel. LLMs aren't identical to any part of the human brain, but they do a remarkable job of emulating elements of human cognition: language, obviously, but also many types of reason…
I'd try the idea myself, but I have a job. :-)