The article shows that he did try to restrain the man. Multiple times.
Would you have thought it ok, if the cop said, alright, it’s your life, go and die in the fire, and he went into the house and subsequently died?
In the age of the taser, trying to restrain someone means barking orders.
Your thoughts on the use of a taser coincide with free citizens being tased into compliance, and dogs being shot on private property. It has followed the militarization of the police, and the theory that risk is no longer acceptable to LEOs.
If a cop wouldn’t shoot someone, then they shouldn’t tase them. That is where you and I fundamentally disagree. There is no more relevant point.