Gosh, I can't remember who first brought it up. I do know that Feinstein, Feingold, Schumer,& Cornyn addressed it.
Roberts doesn't seem to embrace two prongs of the Torie matrix when applying stare decisis, whether of not the decision shocks the conscience, and whether or not it has caused controversy, and diviseness, and disruptive rather than cohesive to the public square. Granted, I can understand why he wouldn't go there, unless pressed. The other two, regarding whether it would shock the system, and preexisting arrangements, and whether it is a constitutional issue, he did embraced.