re: Sunroof exploded

Doubt it’s from a rock. Has it been replaced before? If it has bring back to glass shop, if not then contact the dealership. I haven’t done a Mazda sunroof and honestly don’t get too many sunroofs but it does occasionally happen. I’ve never known one to be hit by a rock. It’s usually either randomly shatters like yours, or someone intentionally broke it, or a limb or something. A sunroof randomly shattering is obviously a defect and you should stress to corporate or whomever if dealership won’t work with you.