Because value in this case is particular to the engagement of a player.

Most playing a video game know nothing of programming let alone the specific architecture or development process, so I am not sure how you would expect them to express feelings about the code.

Narrarive or script is still in the same artistic consideration though, so say if the game was a sort of meta exploration of the code, this might expose the same sort of "value" over code.

It may not, by some philosophical definition, but most consumers (and I'd say most programmers too) place little importance on code as a human artistic expression. In the case of games the art assets are also a much more clear and direct signal that there was AI involved in the creation of the game. A game with handmade art but vibe coded game logic might not be as obvious.

Art is more artistic, it’s more of an expression of human ideas.

I don’t want AI either but I find AI art more offensive