Let's use the words that appear in the actual article: "dazed, catatonic and nonresponsive". So the real question is, should you taser someone who's verging on unconsciousness?
As opposed to what, shooting them with a gun? Yes.
Sounds like the OPTION to do so was police policy. I've watched people on COPS who were "dazed, catatonic and nonresponsive" fly into a rage when confronted.
You're a great Monday morning quarterback. How was the cop supposed to know she wasn't drunk, on drugs, suicidal, or just plain whack-o?
I hope she wins -- big.