It is, but I suspect you're also picturing a fairly low bodyfat percentage. I don't think Sheiko is thinking in terms of bodybuilding proportions. For example, many powerlifters in the "unlimited" category (the cutoff varies from federation to federation) carry a fair amount of fat along with their muscle.
Taller athletes often have unfavorable lifting leverages, particularly when squatting or benching, and extra bodyweight (even fat) can often help somewhat in offsetting such disadvantages.