Yup, true...
I do not have too many hours on A320, but was "privileged" to make an approach in severe icing in ZRH about 2 years ago. After landing, the gear, and the non-deiced part of the wing looked like something out of "winter wonderland", but the tail was essentially ice-free..... so i guess Airbus must have got that one right...
By the way, on the subject of icing and the A320, there is quite a controversy about landing with Flaps 3 or 4 in icing conditions... Seem to remember that Flaps 3 with a speed increment made for sure-fire controllability with ice already built-up, but the shorter gap between the leading-edge slats and the wing in this configuration actually increased chances of build-up... Don't remember for sure if that was the gist of it, but it made for a few interesting bulletins at Swissair at the time... Maybe somebody current on the airplane could make a statement?