I don't see many usecases for that - besides the cable length problem mentioned in the article, it would have the effect of reducing choice for the consumer. I

I don't see many usecases for that - besides the cable length problem mentioned in the article, it would have the effect of reducing choice for the consumer. I could perhaps see displays including a very basic GPU and advertising it as a plug & play display, no need to check if your video card has enough ports, but I believe (citation needed) multiple display outputs have been standard for years now. If that's the usecase you're after, I'd also suggest that you're better served by USB - there have been basic USB external GPUs available for years now that would do the trick.