As far as I understand this is the latest shot in the conflict between Spain and its lack of affordable housing. I'd put the symbolic start around 2004-2006 [1] with the movement called "you won't have a house in your fucking life" where people all over Spain started demonstrating against high apartment prices. I don't like AirBnB and I'm glad they got fined, but the Spanish government also needs to accept that they…
They've been expanding their airports over those 20 years; Barcelona's passenger air arrivals has doubled in that time and there is another expansion being planned. Barcelona is not a large city and they should really be coupling every airport capacity increase with an equal increase in tourist accommodations or they end up in an even worse situation.
Not great for prices (Ryanair is complaining about high landing fees) but it does mean tourists have a good job being dispersed into the countryside and having a good experience.