While I very much agree w/ your points -- the Chinese drones in Russia is a little different. Because of sanctions against Russia (and not Ukraine), the source of their drones is very meaningful. I.e. If the majority of their usable munitions are from China, and the US can pressure China into stopping that, they can stop the flow of munitions to Russia in a meaningful sense. Given that's a key part of the strategy I think reporting on where Russia's sourcing its drones is extremely relevant, while generally irrelevant when the context is Ukrainian usage.