I'm a bit surprised I never read about this till now, though while disappointing it is unfortunately not surprising.
> The Times says the move is driven by concerns about AI companies scraping news content. Publishers seek control over how their work is used, and several—including the Times—are now suing AI companies over whether training models on copyrighted material violates the law. There’s a strong case that such training is fair use.
I suspect part of it might be these corps not wanting people to skip a paywall (whether or not someone would pay even if they had no access is a different story). But this argument makes no sense for the Guardian.