Going back to TFTB's comment about possession football, the fatal flaw for both Spain and Arsenal was that when teams set up to disrupt their flowing football they both responded in the same way by passing the ball sideways a hell of a lot, which disrupted the flow just as much as getting poleaxed by Charlie Adam or Marc van Bommel would.
Taking Spain as an example, they were playing some gorgeous football in the 2006 World Cup and Euro 2008, but as soon as they lost their opening match in 2010 to Switzerland there was a definite shift towards ball retention over forward momentum for the remainder of the tournament, while getting roughed up by the Dutch in the final convinced them the best way to avoid such tactics was to spend approximately 83 minutes of the ninety passing it between themselves and never moving forward - even though this constantly proved to be self-defeating, as evidenced by both the Dutch and Chile teabagging them in 2014, Croatia and Italy beating them quite easily in 2016, and Morocco causing them all manner of problems in this summer's group stages. In fact the only time Spain have looked convincing between the last three major tournaments is their opening game against Portugal, precisely because they cut the crap and actually went on the offensive.