At first glance I thought you were making a joke, like the old warning not to use the front brake (ever) because it will make you crash. Then I saw that you were making an appropriate response to the "superfluous rear brake" comment. I have seen many a rider tip over at very slow speed because of touching the front brake. I'm sure I've done it too but hopefully not for many years. Front brake is very important for slowing down, but not for low speed maneuvering.