This particular bondage “each limb bound to itself” is a traditional hojojutsu position. It is not a common shibari position and most practitioners are unaware of the historical nature of this tie. Proof of its tradition can be found in Fujita Seiko’s excellent but hard to find book “Zukai Hojojutsu” (pages 302 and 305).
Many thanks to Master “K” for finding this particular position and proving it actually is a traditional bondage.