It's frustrating when they straight up lie about how high the planes are. 8,000 in the west downwind when landing south, 7,500 landing north. Somewhat good news is that this is something they could fix if actually needed - just have the planes higher (altitude in green circle) in the west downwind which means they have to fly longer finals and burn more gas, or just move the red circled fixes in the west downwind west a few miles. There's no real argument to be had about noise in the downwind though, that's ridiculous... the planes are still clean with their gear and flaps mostly stowed using low power, hardly any noise compared to what Skyview Ranch and Rundle are dealing with.
Calgary knows nothing of noise, really.