Never been a cop, or played one on tv, and Holiday Inn has become too expensive, so take it for what it's worth. All this is in hindsight, and there is no telling what changing one of the links would do to the chain of events. Having said that, there are only a couple things that I seen that may have been done differently, and the circumstances could have turned out differently. Mind you, I say differently, not better or worse.
One is that the second LEO could have gone less lethal sooner, if he had employed a taser, it may have turned out the same, but maybe not. The drawback of course is that the LEO staying lethal needs to cover him and he best be a good shot if the perp turns his attention to his partner or doesn't go down when tazed.
The other thing was that once the first shots went off, they could have rushed in and secured his hands immediately. Here, the drawback could be that the perp may have another weapon, knife or gun, and the officers may or may not have seen what happened to the knife he originally had, which often happens due to tunnel vision, so may not have been an option.
The last thing I want to point out is that you never assume a perp is down for the count, always be prepared to send more rounds into him just in case. And as a civilian, never approach someone you shot, let medics or LEO do that, he may be faking or still have enough energy to do you harm.