> Sailfish X is currently available in the countries of the European Union, UK, Norway and Switzerland ("Authorized Countries") and the use of our website and services to purchase Sailfish X outside of the Authorized Countries is prohibited.
That is only for a few proprietary bits (Android App Support, Predictive text input, MS Exchange support). Now, those features are very useful, but most of the OS is open source and the open source version is usable (without those features).
They also don't stop people from outside of those countries from ordering it.
https://blog.jolla.com/jolla7/