I don't buy it. Even if we accept for the sake of argument that limiting sexual references on broadcast TV is a good plan (a point that I don't consider settled, by the way), using dirty words as a proxy runs straight into Goodhart's law: the broadcast rules are known in advance, and innuendo's bread and butter to TV writers. A good Schelling point has to be hard to work around, even if you can't draw a strict line; this doesn't qualify.