Literally no tolerance? I always figured that like everything else, there’s a cost/benefit analysis to be done, and you try and tweak enforcement levels to the point where it gives decent results without costing the earth. No law is enforced with literally no tolerance in practice.
You would not believe how bad publisher data is. I run a book website, and Dune is often tagged nonfiction in the data we get from publishers. I don't think they know how to use the BISAC system the industry uses (https://bisg.org/page/BISACEdition). With Dune, they were marking it "AI," which is a nonfiction-only category.