I mean, the general consensus seems to be that this is the juicero of space launch systems...not 'impossible' just not realistic or useful
I have heard them say repeatedly that the physics work. Physics are 'easier' than manufacturing/building something...lab scale/bench scale are exponentially easier than full scale...full scale is exponentially easier than building something consistently. Ask Tesla.
I have yet to hear them talk about how they are manufacturing parts for the full size centrifuge. When I hear them mention forging or the heavy press program or similar I'll take them slightly more seriously. I'm trying to conceptualize what the arm would look like and the force it would have to withstand and honestly can't.
Right now, they have been stuck for years on 'trust us this doesn't violate the laws of physics' which is not comforting when I only ever hear that from cooks.