It’s still a valid sentiment. IP law as it is today protects established propert at the cost of both innovation and a robust public domain, which were both mission parameters of copyright as established in the Constitution of the United States. (Other nations may be more deliberately feudal with their foundational IP laws, but I don’t know.)
The public would be better served to abolish intellectual property entirely than retain the system we have, but our regulatory agencies are long captured to preserve the property rights of the wealthy, even when it harms or kills the public.