I kind of agree with this in part. Nothing can and should supplant the unique creativity of the human individual in work or art. But neither I think should we reject modern technologies in enhancing both as long as they are used in balance and with discernment.
Blizzard is already using AI, for at least a year now, but they also claim they are being very careful in implementing and applying it to in-game artwork:
Blizzard Clarifies Use of AI After Patent Surfaces [UPDATED]