Can I order the BT Sport app and online player on its own?
No, but it's included for free with BT Sport on the Sky Digital Satellite Platform and with BT Sport on BT TV. The app and online player is also available with our BT Broadband packages for just £5 a month.

Keep reading that page! It says that all IPs outside of the UK will be blocked, even if you have paid for the BT Sport package.
Look's like you'd have to have a BT Sports account and log in through a VPN to hide your location. How convenient!
Maybe that's because they want to negotiate a separate contract for each country/continent like they did for China. Our day will come...