Not really, thats just knee-jerk and ignorant Hoori (its unnecessary to do it as a big team when you are capable of more, but its a tactic like any else).
And Bilbao did extremely well, if you can defend and do it well, then kudos to you. Sevilla is similar, except Barca is bit more out of the box in their attacking scheme even if struggling. Real was too much Ronaldo in approach, they missed Higauin making things happen on his own.