R
Having to deal with a mount is no different than saying having to deal with you to get to one of your churchies.
As a crusader, the mount becomes a faithful follower when you mount up. And dealing with that skill of a crusader is no different than dealing with say the pursuit skill of a warlord or any other class specific skill of the other classes. Every class has their benefits. A big deal was made of persuit being unfair as well. And there are other ways to deal with spell casting npc's, blind (either the orderer or the ordered). Silence as you mentioned, or there is another simple one, that is as effective as silence, because there is noway to fix it during combat, without opening another vulnerability, so I still say it is not unbalanced. And this is coming from someone who has been on both ends of the argument in game.
