Question about dog-aggressive dog?

Kudos to you for asking an intelligent aggression question! Aggressive training techniques have been proven in several different scientific studies to increase aggression problems in aggressive dogs, so you're on the right track of thinking for sure. Distracting her is a good idea, but if she just goes back to barking and growling then you do need to take things a step further. I do not think that simply leading her away from the door when the neighbor's dogs are out would cause her to act more aggressively at all if you do it in a calm, non-threatening manner. If you were to have her wear a pinch collar and jerk her away from the door then that certainly could cause a problem, but simply leading her away from the door as you would lead her away from another dog you met while out on the street for a walk should not cause any problems. Personally I would not allow her to continue going back to the door if she's going to start barking again.