I'm not sure how you've come to that conclusion. He is saying good defensive play is of equal virtue to good attacking play.
Reading it again I do think i've got him a bit wrong.
I still don't agree though, his talk of a struggle making for entertainment isn't always the case. Arsenal v Chelsea last weekend was awful, close game between two pretty well matched teams but that counted for nothing in entertainment value as Chelsea shut the game down and Arsenal had no answer, top marks for Mourinho tactically but zero entertainment from the 'struggle'.
Entertainment comes in a myriad of forms, often it's at odds with success, Arsenal have have probably been the most entertaining English side for most of the last decade but often had no backbone and they won little, didn't make them bad to watch though. I watched Wolfsburg play someone earlier this season, can't think who now but both sides were garbage defensively, think it was already 2-2 by half time and one of the goals Wolfsburg conceded was even on target! Vierinha was so shit at defending he stepped outside the post to block a shot following a corner, it deflected in off him. That made for a very entertaining game as both teams gave up on defending and just went for it, top stuff.
I personally found Barcelona's dominant years under Pep to be excruciatingly dull, they were winning but their games just became a tactical/technical show case largely devoid of entertainment until Messi got arsed to do something special.
They're just completely seperate things for me, success and entertainment, some favour one over the other for differing reasons, sometimes you can both, or neither, they're completely independent. Entertainment is purely in the eyes of the beholder, success is indisputable.