We could take your debate even further - dogs evolved eating our refuse (garbage) - vlcaks are still mostly dog (as opposed to wolf). Should we let them eat out of the garbage cans?
The reason we do it is because there is a lot of bad bacteria that can grow on raw chicken, especially on the surface. While te chances are low that it can make them sick, why not take 5 minutes and make it even lower? I don't see any negative to rinsing the chicken under hot water (and letting it cool a little before serving) - cooked chicken meat (not bones) and organs aren't bad for dogs and it's not hot enough or long enough to make the bones brittle.
I look at it this way, 5 minutes, maybe a gallon or two of hot water, and a strainer or small pot to rinse them off in for a little extra peace of mind.