Look at industries that aren't protected by copyright, like fashion. There is a lot of progress and change in that industry because it's legal to borrow from other people's ideas while still making a unique work.

Scientific progress is another area that requires the sharing of knowledge and ideas freely in order for all of society to benefit and progress.

I'm not convinced that borrowing, even heavily, from someone else to make a new work is a bad thing as seems to be the implication in this article.