Pgc can be a useful tool in the toolbox however. Just look at dwarf fortress for example. But games need more than just that. And with LLMs there could also ve some use (generation of voices I think for example, or some low level of conversational chatter). The problem is the data usage, the anti worker stuff (no voice actor wants their voice stolen for example), and like in this case, the people just promoting their other crap. Like how crypto games are just a shell to promote their crypto bs.
LLMs could have some minor use but with the backlash due to techbros going their usual vc style techbro ways, and steam requiring disclosure I doubt it will be of much use the risk is too great. Which considering the power costs is great.
Considering the history of PUA stuff on lesswrong, Im going to assume this was a pro not a con for them even.