Interesting article that Biggs, but I don't think tiki-taka is dead so much as that Spanish generation has drawn to a close. If they were still playing at the level they did in 2008 they'd still be doing very, very well.
As you'd say yourself, football is about results not preconceptions about the correct mix of the "cocktail" of physicality and technicality.
The end to end stuff we're seeing in a lot of matches at this WC is great for spectators though.