Once again, the poor understanding of "use of force" and "deadly force" as police are actually authorized to use. If a suspect has a knife and you believe that they have the intent to use it on you or someone else, it is a deadly force assault. Guess what? Bean bag rounds and TASERS are NOT what is supposed to be used in a deadly force assault, your firearm is. The fact that the police were attempting to use LESSER levels of force to try and get the suspect under control without striking him or shooting him is lost on the unfortunate part that he died as a result of their use of force.
It's a no win situation. If they would have gone in and used striking techniques, then everyone would be on here talking about how the police should have just used a TASER instead. If they would have used a TASER, people would have been on here suggesting they did something else.
Police use (for many agencies) what's called a "+1" response of force. This means that the police will use one level higher of force than the suspect. Why? Because we are not paid to get into an equal contest with a suspect. We are paid to get the suspect under control as quickly as possible to keep ourselves safe and the suspect safe in the long run. So, if a suspect attempts to punch/kick and officer. That officer is allowed by law to strike the suspect using an impact weapon to keep a tactical advantage. This is in contrast to civilian self-defense that requires an equal response of force.
So, do police use a "shock and awe" approach sometimes? Yep, because we want to get in their as fast as possible and have the suspects as confused as possible so it doesn't escalate into something more. We try to take away the time factor that they can mount a violent response to the situation.