That's reasonable. This would require broader and deeper thought and discussion apart from the strict legal debate. As in, what is the public interest here? What kinds of rules would bring social good? Etc. What should the law facilitate and what should it limit to achieve that? The problem is, that we really don't know how things will play out, we have no long-term experience with these things yet. So it's all very speculative.
Just as duplicating a fragment can be legal, duplicating any fragment on demand is not. Rephrasing a passage might be legal, but rephrasing any passage on demand might not.