Your opinion is valid and and I'm not trying to toss you too much shade here, but can we stop complaining about free stuff that's obviously far from being a finished product?
AI generation is a tool and getting mad about it won't make it go away. It's becoming more ubiquitous because humans inherently do not want to do more work if they don't have to. While Enrayne's utilization of AI in this project is adequate at best, it debatably gets the job done. This is visibly a character, that is visibly a crate. Aesthetically pleasing? Meh, maybe not. But these are placeholders for a game that is not finished. A prototype.
Using AI generated anything as assets in a prototypical project is absolutely valid.
While this is all subjective, there actually are totally valid places for AI generated assets, especially in unfinished projects.
Also note that Enrayne was totally upfront about their use of AI, as well. Not all developers are as forthcoming. So, kudos to you, Dev!