By definition it is art. Digital art?
In a way it was made by humans, so it is human creativity that brought it to life. Somebody had to program the AI and make a mechanical drawing table that it can use. The image wasn't printed but painted, am I right? If we could go back to the ancient times an find someone carving hieroglyphs in stone, he'd probably call it art. But if we took out a spray can and painted a graffiti nearby, he'd laugh at it and call it a meaningless blob. Times change.
In ancient times, humans were carving hieroglyphs, humans now use a spray can and paint graffiti. This one is an AI. Although beautiful in some way, this one in the news was made by a machine... no imagination, just numbers...
On the other hand, you could say, that AI painted picture can be considered an "Art", because that AI was, at some point, created by a man, which had his own objective views on the subject.
Errr... no. If your child invents something, it does NOT make it your invention. The "art" in here was created on its own digitally, with numbers behind it, and not because of its own imagination. It was created by a machine. It's just algorithm.