It was not ICE that crumpled 038 into a ball. At the worst, it was contributory. The problem was a mechanical deficiency (sic) that was modded/remedied in a device not intended to de ice, the FUEL OIL HEAT EXCHANGER. That is the story, and some one is sticking to it.
The 320 is not at risk. It is included in the AD for safety and or red herring' sake. Placement of probes? Possibly, but that means probes are not the problem either, at least potentially.
Simultaneous failure of probes, pitots, Statics.
Three day old fish. Thales is having a rough patch.