What place for culture in contemporary nationalism? A Galician example.

Yesterday I went to a talk by Dr Paula Portas Pérez about the contemporary narratives of the BNG, Galicia's nationalist bloc. As you would expect from a nationalist organisation, part of their rhetoric alludes to the 'protection' of Galician culture from external forces (Castile-dominated Spain used to be seen as the oppressor, but given the need to work with the Spanish government since the 1981 Statute of Autonomy, emphasis has shifted to 'threats' like the EU or, more generally, globalisation).

However, when I asked Paula what the BNG mean by culture, she said they only ever refer to the language. Speaking galego makes you Galician and therefore there should be language normalisation laws in place to protect and promote what is commonly seen as a language heading towards extinction. But beyond that, the BNG do not engage at all with the place of culture in Galician identity. It got me thinking, does culture still have a place in the construction of national identity? Have nationalists stopped creating a sense of national pride from great authors? Stopped celebrating traditions as a sign of uniqueness? Or has this cultural identity become so naturalised and internalised that people don't even question it any more? It seems that for the BNG people just are Galician and there's no need to question what that means. 

In The Sources of Nationalist IdeologyJohn Breuilly wryly observes that "[Nationalists'] claim to uniqueness is ultimately used to justify the claim to have a state just like any other", and that seems like the case here. In the fight to have the same political powers as other nations, the Galician nationalists seem to be losing sight of what makes Galicia distinct in the first place.