Yeah the Joust for points, just like in other martial competitions, killing your opponent happened but was greatly frowned upon. Remember the king expected these men to serve on the field not kill each other in peace time. Landing a strike on the shield showed skill, discipline, horse control and accuracy when jousting.

De-horsing the other rider is only the goal in certain jousting disciplines (Scharfrennen), in this particular discipline it isn't and never was the goal

Wtf, they don't even try to hit each other. Hit the damned shield mate

Was wanting to see a man unhorsed. Even if was on purpose. Fragile world.