It's think we have different views on 'currently useless'. Call the Crusade is effectively equivalent to a 12/6 character with charge for 5. That's a pretty good deal in most cases. The drawback of not being able to choose where they go is balanced by other advantages, and all it really means is that they're to be used as support, rather than the spearhead of your attack. Which frankly, is perfectly fine with me - it's not like FD doesn't already have a ton of good, low cost offensive weenies to throw at the enemy.