Come to think of it, this shooting really highlights the mindset difference between military and non-military training, and why it's so bad to conflate them.
A military person might very well be allowed to shoot anyone inside a given building, or at least anyone wearing a particular color or type of clothing. But non-military people do not have that advantage, and can come to a great deal of grief if they train as if they do.
If you are an ordinary person who carries a firearm for self-defense in a civilian context, you should probably stick with schools that emphasize ordinary self-defense in a civilian context.
My personal website: Cornered Cat