Ender pearl is a fantastic resource. Since it's release it always has and I believe should be able to save you. This bug is happening since the 1.16 update. The first half second you start to fall you can throw an enderpearl down and see that it falls at the same speed as the player. After the first brief second if you throw a pearl downwards it lands after the player lands. This will cause fall damage from wherever you started the fall from and the ender pearl does nothing to negate the damage. Reproduction was achieved by throwing a pearl down while falling.