I'm a little confused by the standard values they've chosen for exercise and weight. It looks like even the guy with three hours a week spent exercising got knocked into the red, and the lady weighing in at 112 lost points as well. Both of these can be perfectly acceptable/good values, depending on the nature and intensity of the exercise and the body type/build for the weight.

How is this thing making a determination on healthy weight without taking into account other factors like height, age, build, etc?