Yes, there are genuine complaints because there has been a change in noise levels and it may be genuinely disturbing to your life. On the other side are the muppets like that Kellyville idiot who complain for some sort of mental masturbation or people who move next to a 100 year old brewery and are surprised that trucks perform deliveries to it.
I live two suburbs over from Kellyville and while you can hear aircraft flying over, you would generally only notice them if everything else was dead silent or you specifically listened out for it. There is no way it is disturbing and certainly not when inside a house. The only time I have had real noise was C-17s doing some circuits over the house and that has only ever been at mid afternoon (and I was running outside to snap photos anyway).
The zero tolerance thing is right though - how many current problems in society would are caused because people just won't let things that don't matter slide.