Title is a bit misleading. Article says

> “by urging firms”

Hardly a “requirement” and I’m fairly confident that 100% of the companies will choose the “explain why they won’t disclose” option.

“ The draft was drawn up amid growing concerns that texts and images may be used to train AI models without consent”

Who should tell them?

Good luck enforcing that.

Though with AI-powered ghiblification it's pretty obvious where some of the training data came from.