Inorganic chains and rings

Let’s name a simple inorganic chain (a):

(a)

1,2-dinitrosodioxidane (substitutive) bis(nitrosyloxygen)(O—O) (additive) 2,5-diazy-1,3,4,6-tetraoxy-[6]catena (ICR)

The shortest systematic name I can think about is 1,2-dinitrosodioxidane, based on the parent hydride dioxidane (aka hydrogen peroxide). Alternatively, we can emphasise the structure’s symmetry by naming it as a dinuclear entity, bis(nitrosyloxygen)(O—O).

Or we can have a go at it employng yet another type of nomenclature developed for inorganic chains and rings (ICR): 2,5-diazy-1,3,4,6-tetraoxy-[6]catena [1, 2 IR-7.4]. What’s going on here?