Let me explain - imagine generative AI is good enough we can just generate a UI on the fly. Take to its extreme every user can have a personal block of UI components catered to their preferences (dark mode, blue color scheme, bigger fonts etc). Then instead of every business designing their own UI for their website they just send over the information and the UI is compiled for every user baed on their own personal set of blocks.
We would very quickly need to have some sort of standard protocol to make this work. I think that would be a way more efficient world because companies can focus on the content and not on tweaking design. And every user has a lot more control over their user experience.
Of course a lot of companies may want to control the experience themselves so maybe its not one way or the other but a good chunk of websites cna use this pattern and in time it may actually become an advantage as users expect you to follow this UI protocol.