There is a lot of content in games. The AAA games can have single artists work on one character for the whole game. The author even says it saved him 5 days, and look how small the scene is he's talking about! AI has the ability to scale up the production quality of games, whilst taking half the time or less.

This kind of tech enables an indie to build a prototype with AI generated content, where the art direction is clear, then get funded in order to hire artists for the touch up. Kickstarters are often very visual, so this kind of stuff is required up front.