I think it makes much more sense for simple illustrations for articles, presentations and books ("pencil sketch" style). For logos, especially since you'd usually want simpler shapes, less detail, with a lot of readability, I'd go pay an artist if it was for a company I was building.
Heh, and you don’t think we won’t train AIs specifically for drawing logos where not only can you specify features that you want but even the demographics you want it to appeal to based on mass collection of data.
For logos you want specifically a design that will work well in black and white, and you want assets that are vector art. At the point that AIs can produce that it's worth revisiting for logos, but I'd bet that's probably more on a "many years from now" schedule.
I think it makes much more sense for simple illustrations for articles, presentations and books ("pencil sketch" style). For logos, especially since you'd usually want simpler shapes, less detail, with a lot of readability, I'd go pay an artist if it was for a company I was building.