Interesting take. I think it also matters how broad or small you define language or communication. Personally and in a philosophical way spoken and written language is the main differentiation between us and and animals. We can quickly and specifically make intent and meaning mediated between us. I also think we are hilariously bad at it in a modern context, the complexity of the current society makes communication (and by extend community!) unnecessarily (?) noisy.

Another interesting point is the idea of Logos, Word, Speech as the divine attribute par excellence in some religious and mythological contexts.

That said I am not sure what the author wants to optimize. I mean if AI can mediate meanings and intent, that sounds interesting. If it is to AI have their own chats, I doubt that is useful from a human context.