Call me cynical but my immediate impression that the gamedev is lying and exploiting the perceived asymmetry between the indie dev and the behemoth that is Steam. Attaching your game to controversy around AI is a great way to generate discussion and serves as a form of guerrilla marketing.
Maybe if the rules are "your game shall not contain AI", then don't write a ChatGPT integration for it.
Maybe if the rules are "your game shall not contain AI", then don't write a ChatGPT integration for it.