I don't agree with them being in with the global North but I can see the utility of taking them out and looking at how everything compares with a North/South/China comparison. I'd expect the global south numbers to get wosre and for China to be sort of a midpoint. To me its like how the results for global poverty numbers change drastically when you take China out of them because China lifted almost a billion people out of poverty at this point. I think separating out China can show how successful they have been as a communist country and without being an imperial power.