A bit too speculative. Even though this can generate images at a rapid pace the creative space does not. Rapidly prototyping is not really that useful when it comes to things in concept design, nor does it fill the niche of making an entire scene. Realistically, it's only practical uses are in doing things most artists are not able to do well, such as defining characteristics of individuals to prop and assert generation which in the current scenario it is quite useless for but it isn't to condemn the entire GAN space it will likely never replace artists. Nor the human centered design.