Many people are spending hours in every given day with web browser, spreadsheets, social media apps, word processors, etc. To reply to you, I'm typing on a keyboard to make letters appear in a monochromatic text box. Technology connects us (awesome), but do so, we have to engage with abstractions (tedious).

Conversational AI can help make our interactions with technology more like our interactions with human beings. That creates the potential for us to move seamlessly from introspective uses (only talking to the AI) to communicative uses (talking to other humans). Assistants like Siri are the first example of that in action; you can as easily research something as talk to your Mom on video.

All of this is assuming that we're dealing with AI without sapience or sentience, i.e. ChatGPT and its near term descendants. If AI that is both sapient or sentient can be developed in the future, interactions with such AI may well be regarded as both social and communicative.

The paper "Re3: Generating Longer Stories With Recursive Reprompting and Revision" shows some interesting strategies to work around that limitation by imitating aspects of a systematic human writing process to keep a story consistent, detect errors, etc.: https://arxiv.org/abs/2210.06774

A similar approach is taken by the Dramatron system to create screenplays and theatre scripts: https://arxiv.org/abs/2210.06774

In combination with more systematic improvements to LLM architecture you hint at and next-gen models, we might see coherent storytelling sooner than expected (with perhaps full length graphic novels as the first visual artform).