I think it's a lot more reasonable to think of algorithms like this as new media for artists rather than a replacement for them. Obviously the choice of subject matter is important for art, but the subject matter in these examples was chosen by humans was it not? Humans took the original pictures that the algorithms were applied to. Their choice of subject wasn't made for artistic impact though, it was made to give them a base to demonstrate the techniques with. Artists do this will all types of media while they're learning and trying things out. There are already some artists out their doing some really cool things by incorporating neural nets into their work and I expect their will be many more as the tools become more mainstream and available. Why do you feel the need to be so dismissive of new ideas in art?