I wish I could agree with you, but as a game dev, shader author, and occasional asm hacker, I still think AIs have demonstrated being perfectly capable of copying "those effects". It's been trained on them, of course.

You're not gonna one-shot RD2, but neither will a human. You can one-shot particles and shader passes though.

I didnt say one shot it, coding agents have been out for more than couple years and yet we cant point to single Good piece of software built by it.