Reminds me of the fact that "Raw Hide!" is a 10 second stun. When you know the context for it, there's a solid logic. But if you don't it's an unfair, obtuse noob trap that likely gets you killed.
Currently, it's very unintuitive to realize that riding a horse makes you MORE vulnerable in many situations.
I run into a random person. I have a horse and they don't. I can go talk to them safely because if they turn hostile I'm much faster. WTF HAX!?
There seems to be no penalty whatsoever for riding a horse in mines. I can flee from slimes etc. and carry stuff. WTF WHY AM I DEAD!?
(Raw Hide! is deemed necessary by the devs and pvp playerbase to not turn pvp into "cavalry autowins.")
(Trolls "hate" horses to prevent cheesing them with a horse.)
In both cases, there's a strong argument to be made that something else could instead "remove honse" like a soft CC (horse is feared into running randomly, or is locked into lowest speed, effectively forcing a dismount.)