This is not the way to look at this. Stop thinking this stuff will replace human art. Until we can simulate a human in the machine (not there yet), art will always be by humans because it is a human endeavor recognized and appreciated only by humans.

These things are tools for a human to use. And like any tool that is used in the hands of the casual or the lazy, it will become very banal indeed once the shininess wears off. With your same outlook you could tell Adobe to stop improving the digital brushes in Photoshop, because art is only for humans.