If its anything like what we do over here in the UK, its all about safety, dynamic risk assessments, and 'risk v benefits'.
Every action and risk taken needs to be justified, if there is no life risk, then why risk a life, go to an exterior attack and 'wash it down the road'.
I get the impression that the 5th alarm was a single story structure, seperated from its adjacent structures my either solid brick walls or unnatached, with no life risk, therfore, commiting firefighters into such a situation, risking their lives for very little benefits other than saving a building so the owner can continue trading, i dont think is justifiable any more, its not right, and in all reality, never was, it was just an accepted practice of our profession. Not any more, and i think the Incident commanders decision to go exterior, at the stage he did, going from the run downs, was the right one. But still, 12 FFs, it was reported on internet news feeds,, were injured, how and why??.
You can replce a building, you can not replace a person.
Just my thoughts.
JT