Aposhutayid, there are chalochos about if people do aveiros what their status is,Not only Rabbonim know this halochos.
Moq, look for the start at Brochos 20A (ma’ase with Mason, Mason 400 zuz). Also, you, probably, meant to leave out the capital punishment out of the discussion, not the corporeal one. There is no question that had such a pirtsa occurred in times of Chazal, they would have whipped a bunch of these ladies, and that would have been the end of the pirtsa. And stop defending the ba’alei aveira and creating an atmosphere that it is not so bad what they are doing. There is no clarity, you say? About what? That the women are obligated to cover their knees?!?