Horse taking fall damage from small jumps off flat ground

I found recently that all of my horses take fall damage from the smallest jumps. Jumps 3 blocks or higher will always deal fall damage to the house which is super anoying, since you can no longer use the full jump bar without taking damage. If some horses can jump 5 blocks, why would you add that in if it just punishes players for having a decent horse? If this was to nerf horses not having fall damage, it should only increase fall damage during a fall, not from a small jump on flat ground. If this was intentional, I feel it's just taking away the player's ability to explore the world, since that's all you really use horses for.