The FAA confirmed that debris fell outside designated areas, temporarily disrupting air traffic and causing several aircraft to divert or delay flights.

You can read more here and other news sources

https://www.foxbusiness.com/technology/spacexs-starship-grou...

> between a rocket stage, that cannot be steered

This is just trash. Debris as they call it.

If drive in front of you on a highway and throw some "debris" out of the window, will you enjoy it ?