I think you'll find my previous post reasoned and temperate, if you reread it. Legal niceties aren't actually that important here; the decision to let the convict state is case is certainly reasonable, or at least not unreasonable. If he supports a declaration that lethal injection is "cruel and unusual", then again technicalities won't matter much. The only mitigation of such an outrage would be if the majority opinion declares that it should be replaced with the "humane and usual" punishment of hanging.
supporting the stay in no way rules on whether the method of punishment was cruel and unusual, it is a procedural ruling, which means the legal niceties ARE important. when judging a decision, in order to intelligently decide what was decided, one does have to know what was argued and what was actually ruled on.