No one took into account the bullet could have been a ricochet of a poll or etc.
and by the way the back and front concaved/convexed, that bullet did not stop, it was probably barely slowed down - with the case and battery case bent that far, that bullet went right through , it also looks like the bullet was rifling at full speed by the way it moved the case, which means it was not a ricochet, no phone will stop a fully riffling bullet, and this one didn't . It went straight through, at full speed. No debate. Whether it missed the man or not is a different story