Have been playing with this inside Illustrator all day. Still a little glitchy. A couple years from now, though, not sure anyone will need commodity stock icons or images.
However, those able to design and build a consistent look and feel across apps/web/video/physical will still be needed, and likely worth even more.
I think you are underestimating the ability of the generative ai tools to build to a consistent style and theme. Sure it’s a problem now but not an insurmountable one by todays measures, so I’m assuming Adobe will have it sorted in a few years too