More on failing to grasp the Gratis OA within reach because of over-reaching for the Libre OA that is not

Peter Murray-Rust, in his valid and important advocacy for data-archiving and data-mining, has been arguing for the advantages of Libre Gold OA (LiGoOA: free online access + re-use rights + publication in a Gold OA journal) over Gratis Green OA (GrGrOA: free online access). I argue that since GrGrOA asks for less, faces fewer obstacles, and is immediately reachable today if mandated, we should not miss that opportunity by trying to over-reach instead directly for LiGoOA, since it is not within reach.