That was the whole point of the DMCA, though. Prevent bad publicity by claiming copyright infringement and companiea have to take down the content before they investigate any response. Any time a company doesn’t do that they are risking their own necks. So usually they only ignore it if they know for sure it’s bogus which requires that they spend the resources on a person reviewing every notice before the required time expires.
The monkey’s typing and generating Shakespeare is supposed to show the ridiculousness of the concept of infinity. It does not mean it would happen in years, or millions of years, or billions, or trillions, or… So unless the “AI” can move outside the flow of time and take an infinite amount of time and also then has a human or other actual intelligence to review every single result to verify when it comes up with the right one…yeah, not real…this is what happens when we give power to people with no understanding of the problem much less how to solve it. They come up with random ideas from random slivers of information. Maybe in an infinite amount of time a million CEOs could make a longterm profitable company.