The fact that that last quote comes from a professor and expert on police use of force is disappointing to me - the last sentence in particular. That's the same kind of approach that led to the MOVE bombing (yes, bombing) in Philadelphia in the mid-1980's.
Justifying use of force after the fact is too easy to do, anyone can bold quotes from a news article to support their view. The only rational argument in the article above is to try to end the standoff before nightfall - but that's not a very well-formed argument, to be fair. Reminds me of the Branch Davidian standoff in Waco, TX, many decades ago.