You've misunderstood it, and the exact reverse is what happened. An exposed male chest was not considered sexual and thus subject to no restrictions, while the

You've misunderstood it, and the exact reverse is what happened. An exposed male chest was not considered sexual and thus subject to no restrictions, while the same was not true for female breasts. The change then allowed female breasts, or genitals of any gender to be shown in "fictionalized contexts".