What might be going on with this indie game "fansite"?

I recently came across an interesting-looking indie game, Idols of Ash. Basically, you have to use a simple grapple-and-swing mechanic to descend through an eldritch underground complex while being pursued by a dangerous "murderpede" monster.

I first played it on what I thought was the official site, idolsofash.fun. It's a pretty spiffy design, with a playable web version, extensive FAQs, strategy guides, and embedded images and video of the game. But I ran into some bugs while playing -- no sound effects, weird lighting. When I mentioned these flaws on the developer's Itch.io page, they responded that they had nothing to do with the site.

Turns out it has a disclaimer at the very bottom: "Unofficial fan site. Not affiliated with or endorsed by Leafy Games." Buying and installing the actual version solved my tech issues. And in playing the game more, I noticed that the various guides on the site were subtly wrong in a lot of ways. The About page claims it's maintained by a big fan of the game, but in hindsight the whole thing seems AI-written and full of hallucinations.

Thing is, I don't get the angle here. There's no advertising on the site. It prominently links directly to the game's official Steam and Itch pages, so they're not trying to deliver malware or intercept the developer's sales. I assume the glitches are from a poor decompilation and rehosting of the original Godot engine game, but there's nothing to be gained from that. The presence of images and video suggests some level of human involvement in the site design, meaning it's not some cheap fire-and-forget thing. The URL and content are far too specific to flip into something else after gaining SEO rank. It presents (and acts) exactly like a non-commercial labor-of-love fansite (albeit one that shares the paid game for free in a broken state).

Could this be a genuine, if misguided, attempt by an actual fan to share the game using AI tools? Or is there some kind of scam I'm not seeing? Is this sort of fake AI fansite with embedded versions of the game a widespread problem with indie titles now?