Does it mean they’ll pay me back for the 4K package?
No, in the same way that you wouldn't expect a refund if you personally chose to use less than 4K for a stream. In this case Thierry Breton, the European Commissioner for Internal Market and Services, has made that downgrade choice for all Europeans.
Question to downvoters: does it make sense that every part of the EU gets this degraded quality even if they have competently built IT infrastructure?