this whole active/passive-rule is bullshit or at least the interpretation of it is. especially in situations like yesterday it often gets completely ignored if the player in question (chiellini) doesn´t touch the ball.
another weird thing about this rule:
skip to 1min.
there is exactly one reason for the defender to go for the tackle and that´s the striker behind him, who is offside. yet, according to the rules, it´s a fine goal. i don´t get it.