It wouldn't surprise me if they wound up just copying this, making it a de-facto international standard. Space junk is an international problem, nobody wins by it continuously becoming worse.

De-orbiting requirements add costs, but space junk damage and or avoidance systems are even more expensive, so this is the cheap solution in the medium to long term.

I would expect that they put their own rules in places that are different enough to be annoying if you need to permission from both countries, but for practical purposes the end result is the same. It may or may not be possible to satisfy the letter of both countries rules though.