Waiiiiiiiiit, are you seriously complaining about pikes stopping you and killing you, a bit like how they should work? Okay.
If a god damned pike stopped your horse right in the face, it should not even have the chance to attempt to run away in the first fucking place, you should consider yourself lucky and happy that you still have a little chance of getting away.
Oh, how many times have I reared a horse by piking him in the face with him going FULL FUCKING SPEED AT ME only for the horse to rear, ignore any of my other hits because lol I'm a motherfucking tank on 4 legs, and just run away in the beautiful sunset.