If they reduced the copyright term to 14 years today, they would do it as a "14 years of copyright, then the state gets an enforced perpetual paying public doma

If they reduced the copyright term to 14 years today, they would do it as a "14 years of copyright, then the state gets an enforced perpetual paying public domain subject to royalty in use cases that apply to usual copyright royalties", not like "14 years of copyright, then free for all".