Because Costa Brava it is an extremely popular holiday spot for German holidaymakers, especially among teenagers. Thousands flood every summer to resorts such as Lloret de Mar or Calella.
Because Barcelona is an extremely popular city break spot for German holidaymakers,
even more so among teenagers. Millions flood every summer to have their pockets fleeced on Las Ramblas.
Don't doubt that GRO is a destination in its own right, but so is BCN. No doubt the bean counters have done their maths, but this bucks the trend of recent months.
My geographically wired brain always thinks - link the cities to the cities, but it is never as simple as that!