That's a bit off mate, Inestia and Xavi who were a huge part of that are done, Spain in the WC? those two are a shadow of their former selves, also Pep is not there any more, he was central to that, Mesi played a little deeper too, saying it was "found out" is not accurate, it worked for years and they dominated Europe until the squad eroded\aged and the manager left. People say it because they did not make the CL final every year or win the league every year, that's football.
To play that type of game you need the best players, anyone can do that backs to the wall stuff and hope as you did in 2012.
tiki taka as you call it, you do realise that is "passing and movement" right? That Pep barca side were brilliant at it, the passing was simple but the movement was fantastic never ever stopped in the 90 mins and the work rate was immense, to just say it was "found out" is really not saying anything at all.
barca at their best did not need to be direct so it was a little boring at times, but boy was it effective