That's one possibility that JPL engineers are looking into. The bottom line is that they now realize they should have shielded the mini-boom that was exposed on Curiosity's deck during landing. So far, this is one of the few engineering details that they missed. And this is why you include redundant systems.
This unexpected damage to the wind sensor must have been because of the low gravity on the mars compared to that on earth. So the pebbles got lifted much more than expected by the rocket thrust and hit the wind sensor
What amazing feet... hats off to American technological innovation and ingenuity. Brings back to memory the days when I worked at JPL during the Voyager sojourns around Jupiter(the space craft used plated memories!!). We used to crowd around the JPL cafeteria monitors watching live images of the Jupiter with the rings( looked like big mac) and the moons ( of course it took ~30 minutes transmission time from Jupiter). Those were the days... I am glad we are back in that zone again.