Maybe that's what they mean by 'military grade'? Sorry, all joking aside, it SUCKS to have this happen to your phone
I hadn't cracked a screen or damaged my phone since the S2 and then S7E, boom, crack (sure, I did send it flying out of my hands onto pavement, but still). With these phones while scratches and 'direct hits' are harder to cause damage, a ding in the right (or wrong, rather) angle with curved glass and you're done.
I've seen phones survive large drops and just as well be completely shattered with a tiny drop onto a sharp-angled step.