Like I said earlier, you can't blame Spain for being boring, it's the opposition.
Samee, you must have missed the Chile and Paraguay games in the World Cup, both were brilliant encounters. Paraguay gave it a good go and should have scored twice near the end, just seeing Bielsa's manic formation and his speedy players cause Spain problems all over until sendings off was great too in the Chile game.
Recently Argentina trounced Spain 4-0, Costa Rica took the game to them and drew 2-2.
Notice what the difference is in all those teams? None are European, and they all caused more problems than any European side has.