/ic/ - Artwork/Critique

Why does Loomis teach that one should draw men who look more exaggerated than the average man? I don't think the figure on the far left looks "dumpy," I think he looks like a regular person. It's the other figures that appear unusual, like what someone would draw if they're trying to depict a very fake, plastic sort of fantasy. If I'm learning figure drawing, shouldn't I want to depict people as they are rather than "idealized," "perfect" versions?