From what I can tell this part didn't change for the refresh after checking the parts website for multiple years. I wonder what has changed since there didn't seem to be previous complaints on this that I've seen. Is the spoiler gap adjustable during install of the spoiler and it is being set too close so when water gets in there and freezes it expands to where it hits the roof when opening? It looks like that rubber gasket under the gap will allow water to freeze in there.
For those with damage, when were your vehicles built? This info is located on the driver's door sticker above the tire and loading sticker (where the VIN is). Maybe these were all in the same timeframe which could lead to someone installing them incorrectly from the factory or maybe a supplier issue.