But the warranty
does cover the screen just exploding out of nowhere. The key difference is with a screen there has to be trauma to exclude it from warranty. With water, even laying it super-gently under one inch for thirty seconds is not covered, when it's supposed to be safe for thirty minutes at five feet.
Car crash standards are okay, because the car always crumples, and they don't make promises like "you can crash a car at up to X pressure and the crash will not penetrate and cause damage". If a company was parading third-party lab results showing an immunity to 10mph collisions vs. walls, their warranty has no place excluding 5mph collisions vs. walls.