Not surprised. They used to have training material incentivizing professionals to use .local as TLD for Active Directory realms. Thats a reserved domain for Multicast DNS. Working on Linux automation systems we would need to make sure to disable anything related to Avahi in our images otherwise name resolution would fail for some customers.
Support patiently explained .local is reserved for something else and kindly provided Wikipedia links.
They never responded why they used .local in their docs, trainings, webinars they provided, though :)