That is a question you should put to the lawmakers. I'm not sure it's a good thing. You're right that the people who make use of TPMs may cause problems for other people who have a legitimate desire to take advantage of certain exceptions in the legislation.
That is why I think we have to look at what is being done in Europe. There are systems where limitations are placed on these technical protection measures—in other words, you can't use them to prevent people from accessing fair dealing which is already permitted in the non-digital universe.
I don't know whether that answers your question.