It'd be ideal for our armed police who are so trigger happy to be trained well enough to be able to disable an unarmed person like Brown, or someone with a knife like the latest victim in the linked story by just shooting them in the leg - but that would mean we'd have to have skilled, smart, semi-coordinated, athletic and reasonable citizens in the police force. As it stands now, for every police force that has a policeman/woman who could fit that bill they have 15 who are either fat, dumb, unreasonable and/or uncoordinated dregs with a Napoleon complex.
Anytime I hear someone suggesting the "shoot to disable" I know I'm dealing with someone who is completely ignorant about the subject. That concept is not based on reality. It is the absolutely most dangerous option possible.
If you'd like to know why feel free to ask. My response will be tl;dr, so I doubt it'll do you any good. But I can help you to save yourself from embarrassment and just suggest that in educated company you never advocate for police to use their firearms as a less than lethal alternative because putting bullets in a person always has the potential to be lethal.