Legal agreements won't stop companies who don't care about legal agreements, they'll just add "popup.write('password').submit()" and move on. Multiply by 1000x, and you've solved nothing, while making the UX for normal users worse.

I should have been more clear with the goal.

I know it's technically very easy to get around, but would it give the content owner any stronger legal footing?

Their content is no longer on "the open Internet," which is the AI labs' main argument, is it not?

Law is only as useful as your ability to enforce it. Would you have the legal means (and will) to go after a random foreigner who still scraped ypur site after accepting the terms? Multiply by 1,000 times a day.