Are you suggesting any suspect given orders by police should ignore the order, and if the dog is released, it's reasonable to shoot the dog?
I’m saying survival instinct is just that survival instinct. Fight or flight, have you ever had an animal attack you? I have, you instinctively defend yourself from it. If a dog is lunging for me, or coming after me or any other animal for that matter, and I am armed, I’m going to shoot it... To expect someone to just stand there and take an animal attack just because you said so is ludicrous.
If this guy was threatening the police or the public, then fine send in the dog/shoot etc.. If however he wasn’t, and you send a dog after him, and he defends himself from the attack by the dog, but does not threaten anyone else, and you shoot him for simply defending himself.. that’s problematic.