The movement has been brewing for a while, it's just that it is finally getting traction, to the point there is now a PEC for a reduction to 4 x 3 instead of the 6x1 workweek we have right now.

And since this is a very popular change, the right can't simply say they are against it, so they are forced to say they agree with in in principle and instead they try to raise doubt about the way it is phrased, saying it's unconstitutional, etc.