For someone who is meant to represent the peak human human condition (or at least close to it), there is absolutely nothing unrealistic or exaggerated about the musculature of his suit. Walk into any big gym or fitness center and you will see dozens of people with similar physiques, and that's not including the roided-out juiceheads who look even bigger than this.
I'm a little baffled by the Schumacher comparisons. Yes, both suits utilize some form of artificial musculature, but this is like comparing apples to oranges.