IIIRC the overall conclusion of statistics/studies has been that tasers are safer that batons, fists, and tackling.
And falls were the big source of injury even before tasers. I suspect that's why tasing is generally safer than tackling.
OTOH, the fall-factor is why it probably would have been better if the officer waited until she was well clear of the sidewalk/curb. As she stepped off she had some extra downward-and-forward motion. A tackle on that spot could easily have been just as bad. If the officer had waited a second longer I doubt she would have been seriously hurt. But I don't believe that's the sort of calculation officers can be expected to make: "ASAP" is almost always best.
Though a grab does look like a good bet. Yet officers are trained to use "decisive" force. Generally speaking you don't want to give the suspect the chance to get further riled-up by an attempt at force that fails to subdue. It makes injury (for both officer and suspect) significantly more likely.
I'd say the woman was a victim of terrible luck. The officer could have acted better (especially in not allowing that situation to come about) but it does look like he was following Flordia's rules and his training. And both rules and training were designed around playing the odds - what usually works best. If the officer had transcended his training, realizing, for example, the danger posed by the sidewalk-to-pavement transition, he might have tried the grab and got her safely. And, of course, gotten zero praise or recognition for his good split-second call. OTOH, he might have been in big trouble for tackling the women, or letting her play in traffic. (Which seems unlikely... but I wasn't there.)
I guess my point is that there are plenty of situations where I think the police need to be second-guessed, but I don't think this particular incident is one of them. Or, if there is second guessing, it's about what led to her running out of the station, not the tasing.
I noted from the article that Florida doesn't allow tasers against passive resistance. Many departments used to, and some still do. I think a lot of the worst cases of taser-abuse involved situations where the taser introduced 100% of the potential harm. U.S. usage is slowly getting in tune with the idea that tasers aren't magically safe. (I think there was a case where, during a training exercise, and officer suffered spinal damage due to the contractions after being hit with a taser. I imagine that sort of thing gets even police attention.)
To answer a direct question..
Do you think the highway patrolman should have at least been reprimanded for not properly restraining her?
Yeah. Possibly with further punishment for someone in custody getting injured due to the screw-up.
And it's too bad the legal system is so hard on anybody admitting fault. It's hard to say "I did make a mistake." or "I could have done better." without it very swiftly leading to "You admit total liability."