In 2010, nearly 10% of the revenue of the Government of Tuvalu came from royalties from .tv addresses.
> You may register a .eu, .ею or .ευ domain name if you fulfil the following criteria:
> You represent an organisation established in one of the European Union Member States; or Iceland, Liechtenstein or Norway. You are an individual residing in one of the European Union Member States, Iceland, Liechtenstein, or Norway, or a citizen of one of the European Union Member States, Iceland, Liechtenstein, or Norway (as of 2 August 2021).
There's nothing which requires the EU to impose that law, but it is law nevertheless.
It would be different if the parent had written "If you are not a member of the EU. . ." but that was not what was written.
Likewise, an EU law that governs only EU assets isn't transnational. For example, Poland doesn't have eligibility criteria [0] but French ccTLDs like .pm do [1]. As I read the restriction text I detect a touch of the spite referred to elsewhere as it has exceptions for other non-EU-member European countries: "Switzerland, Norway, Iceland, and Liechtenstein"
That logic defies description. If you are not a member of a certain country or economic zone, you cannot get and keep that zone's exclusive domains. Thats law. What you are saying is that the Eu should have made an exception for the Brits and allowed them to keep doing what others are not allowed. That sounds like too much exceptionalist entitlement.