I lived in London for a decade before moving to SF. SF is significantly more friendly, even now during COVID - walking along a random residential street, chances are > 1 in 4 that passersby will say "hi!" if you acknowledge them. This does not happen in London. Sure if you walk down Market you're unlikely to find a lot of folks wanting to pass the time of day but Market != SF
TL;DR The production environment contained ACLs not present in the staging or canary environments due to those environments being rebuilt using updated processes during previous maintenance events.