I think the Spain think is ripe for a lot of overreaction.  In truth, Spain dominated the first half of the Netherlands game, creating tons of chances (that Oranje back three is shaky).  They just didn't take them.  I only saw the second half yesterday, but they created their share there as well.  Add in three goals that can probably be attributed to goal keeper error, and I think its a huge overreaction to claim that:
1.  Tiki Taka is dead or something everybody has "figured out"; and
2.  That the pipeline of Spanish playmakers (Silva, Mata, Koke, Iniesta, Cesc with Isco and Muniain in the pipeline) is played out.
They already have the next goalkeeper for presumably the next 10 years in De Gea.  They might already have the next generation of strikers in Jese and Morata.  The one hole that I don't see being easily patched on the horizon is center back, but it's not as if I'm clued in to all the promising 20 year old CBs in the world.