A quick glance at /r/Midjourney or even the images featured in DALLE link above shows how boring the “default result” is when using a generator. While it may be easier to create images, you still need some artistic sense and skills to figure out which ones are appealing. In the bigger picture I think this basically means that illustration-type art will become more of a curatorial activity, in which being able to filter through masses of images becomes the predominant skill needed.