"So why oh why are the so-called "Civil Rights" groups protesting?"
probably when you have tasers used in situations physical brutality was never an option before, like repeatedly tasering a suspect to compel him to give a urine sample in a hospital, or tasering a pregnant lady because she wont sign for her traffic ticket and subsequently get out of her car, it is going to get attention.
The alternative in the above situations was never 'shoot the perp'