This article ignores the fact that one region in Spain (the Canary Islands) operates on the "correct" time zone. I have lived both in the Canaries and in mainland Spain and I can tell you that there is no appreciable difference in the attitudes described by the article. Spain's problems (if indeed they are problems) are cultural and cannot be attributed to hours of sunlight.
This is clearly just an example of the Spanish parliament looking for a scapegoat for the woeful state of the Spanish economy.