I’m going to guess that they try to make the characters and history make sense to audiences that have only seen the live action series but it looks like a direct continuation of Star Wars Rebels.

IAEA report here: https://www.iaea.org/sites/default/files/iaea_comprehensive_alps_report.pdf The direct danger to humans from the radiation is minimal but the report fails to include the danger from potential Godzilla or other Kaiju like events. Typical government bureaucracy.

This was a classic Star Trek episode.