I don't know if you were serious but this is exactly what i've been dreading since I read their justification for non-magical healing and buffs, which was, basically "yells at people". I guess the names Leader and Warlord do make sense after all...
it would really annoy me if another player actually found it cool to bellow orders and boss around, à la drill sgt or leonidas-style.
and why would, say a seasoned warrior or any strong-minded character need someone to shout him back to health if he had it in him in the first place? (come on, just shut up and heal!)
I could put up with holier-than-thou clerics or paladins because they had the magic to back up their attitude. I would even take a chorus of froofy bards singing during combat over what i have heard of the warlord.