Could be something very stupid like - "I don't have ffmpeg available here. Should I install it? No, I can't. I'll proceed doing something that will take me 100x more tokens and wall clock just to avoid adding a dependency." I can then just stop and say - you've got nix flake there, just add it.
That's impossible with western models. The only way is to ask why it did something stupid when it already spent 50% of your weekly quota and produced millions lines of slop.