I'm not sure why you keep harping on this. Their last 5B literally fell on top of an African village a few years ago[1]. While of course you're correct that we have calculated risk profiles and nothing will ever be "100% safe," China's 5B re-entry did not meet these standards. Spanish and Portugese authorities absolutely made the right call to partially close airspace as the rocket safely made a re-entry.

[1] https://www.theverge.com/2020/5/13/21256484/china-rocket-deb...