It won't matter until it does, i.e. top guys using it, so in that regard who cares, but I see why the USGA addresses it as who would have thought - anchor, long putter, belly putter, arm lock, side saddle, please add to the list🤔. They don't have the balls to enforce the anchor rule but at least have some ability to say what you can and cannot anchor with/equipment! F,s I don't give about a standing putter until some asshat is holding up the show while doing it....happy Friday 🙃