I guess you're right.  And he carries around a vulnerable NPC with him wherever he goes (his steed).

I'm making a point of describing damage to his armor whenever I can, especially as it blocks damage.  I figure if losing his armor ever is ever going to be an option, it has to feel justifiable.

Mainly though I'm trying to make things interesting without making the heroes "not cool".  So far, so good, I guess.