Again, in the past Barca had a few crazy guys to add some agression on top of Barca DNA, like crazy Stoichkov, Koeman, Davids, Van Bommel, Etoo, Masch, Puyol.
Even Lucho was crazy as fuck.
And noone is fucking arguing against players like that. Puyol was even from La Masia ffs. You think the last few La Masia generations were bland and you are damn right, but you mistake the cause for that. The type of players you mentioned are just rare, that's why our academy (or any other for that matter) doesn't churn them out regularly. Our newest generation, like you said, looks more aggressive and tenacious already. It's a small numbers game.
Alena, Barta or Denis Suarez are not what the philosophy is about.