While I don't claim to know what the heck is going on, I will say this: male sexual objectification of body proportions minus genetalia is a massive joke. Most people can reach the muscular proportions that are portrayed in a lot of video games simply through hard work and perseverance. If one feels inadequate because Shulk has a massive arm, well tough luck. If you would workout on a constant basis and stop being wimpy, you will eventually reach similar proportions if not the same/better. If one feels inadequate because Ike can carry around a Ragnell with one arm, tough luck. If you'd practice swordfighting as long as he did and workout on a constant basis and stop being a mage wimpy, you'd will eventually reach similar proportions if not the same/better.
Whereas for a female, the objectification lies primarily in boob size or butt size, and while you can eventually gorge yourself on so much food and create the grossest butt ever a bigger backside, you cannot just get bigger breasts without falsifying your own body through plastic surgery. Sorry. ;p
I don't take male objectification seriously in most instances, and I don't take it seriously in a video game.