I think I agree with you to a certain extent, actually. I' d say that calls, particularly, work in a setting more like turkey or elk hunting, where you' re trying to locate and/or pull in an animal that does more traveling. In that respect, the rut in a very densely (animal) populated area could prove a good place to work with calls. You' re telling an actively roaming animal that there' s something he should check out.
On the other hand, if you' re hunting a secretive big ol' boy from down in the swamp, you need to put yourself along his normal daily routine and keep quiet!