It also makes audits easier. If a lawyer asks "who owns the copyright to your code?", these pieces of text provide an answer vs random hand-waving. This can be

It also makes audits easier. If a lawyer asks "who owns the copyright to your code?", these pieces of text provide an answer vs random hand-waving. This can be important, for example if said lawyer works for someone about to pay you $$$$$ for your code.