HP represent you ability to avoid injuries, not your ability to sustain injuries

Doesn't matter if it's Jeremy Crawford, Mike Mearls, and all of r/dndnext saying it, unless it's a force field that physically blocks the source of damage, then the DMG Improvised Damage Table, Fall Damage, and half the damage sources in the game disagree, and even the force field doesn't account for all of them in addition to being a really shitty explanation. I'd have to alter the fundamental basis for 5e's damage system to restore verisimilitude if HP were anything other than the ability to take a hit, conversely it's trivial to explain how HP is the ability to take a hit through the established lore that more powerful characters have more powerful souls by just saying their body's are more durable because of the power of their soul.

Explanation if you care to read it: All classes derive their power from the strength of the character's soul, and that strength is represented in game as a character's level. The strength of the soul is harnessed and trained through various martial, magical, or spiritual disciplines, these disciplines are the various classes and subclasses. As the character's soul grows stronger, its power begins to strengthen their body and mind as well according to their will, this is represented as Ability Score Improvements/Feats, Proficiency Bonus increases, additional hit dice, and other level up bonuses. A level 20 Bear Totem Barbarian surviving a 200 ft fall submerging them beneath a river of magma by gritting their teeth and "swimming" their way out of it is representative of their ability to harness the power of their soul to withstand the impact and heat.