"The pilots are from North America, although it's unclear if Canada or the US"
It really grinds my gears when people say "North America" and then limit it to Canada or the US. I know it's a bit pedantic, but there are 29 countries in North America, and the biggest North American city isn't even in Canada or the USA.
For a series of related takes and angles:
Statment(s) from Coulson Group CEO Wayne Coulson
https://www.coulsonaviationusa.com/newsmedia/statement-from-...
https://www.coulsonaviationusa.com/newsmedia/statement-from-...
Fire Aviation
https://fireaviation.com/2023/02/06/coulson-tanker-down-in-w...
Flight Global
https://www.flightglobal.com/safety/inquiry-opens-into-firef...
Aerotime
https://www.aerotime.aero/articles/firefighting-boeing-737-c...
FWiW parts of Western Australia are considerably more "remote" than Ravensthorpe .. but that's a relative term and it's certainly antipodean to many on HN.