The current "rule" is the result of a compromise that permits nudity on the Tintamarre beach - but does not permit walking the length of the beach nude. The compromise is like the written understanding between Cocos and the Prefecture about the C/O section at Cocos. You certainly would not want to make the argument to the government or the Prefet that the current "rule" is the "dumbest ever." I think there is little question about how they would eliminate any ambiguity in the "rule."