Quoting: poiuzLet's translate Valve's message:

Efficiency gains through the use of these tools is not the focus of this section.

"Basically everyone is using AI."

Of course. It's a tool. Nobody stops you from taking the horse, but I'll be probably faster than you using my car.

Quoting: poiuz

Instead, it is concerned with the use of AI in creating content that ships with your game, and is consume by player. This includes content such as artwork, sound, narrative, localization, etc.

"Let's stop being transparent & declare only stuff we obviously can't deny."

But reading the article it seems to work - ignorance is bliss.

I really don't get the negative resentment from a lot of people with AI. It's a tool. It can't replace people, although many seem to think so. Right now, it simply can't. I mean, you probably could for some smaller things, but quality wise it's not the best idea.
What it does is to aid you, to let you iterate faster. Do the annoying things... *shrugs*

Related to the code, I couldn't care less if someone uses AI to aid in coding, as long as the result is proper, clean code. And as a gamer, a stable game that doesn't crash or has weird bugs. How that is achieved, I really don't care, so why tick boxes for that?