Earlier quoted context omitted.
No it's not just protectionism. If I buy Bleu d'Auvergne (it's a French cheese) in the Netherlands, I want to be sure I get the real deal, as a consumer.
But what if someone outside France is able to produce equivalent cheese using the same formula? Why do you care where it's from?
There are also some products in EU which are sold as ' style because of the reason you state, but with that said: They rarely reach the quality of the 'real deal'. Apparently it is not very easy to create similar quality products?