To me, the split money is what makes the Pacific feel more like a side-show. In AA50, every IPC that Japan took from Britain in the Pacific was one less IPC Germany/Italy had to deal with. It also meant that there was a real reason (beyond artificial VC locations) for Britain and the US to fight for those IPCs in the Pacific. I think it gave AA50 a very dynamic feeling across the globe.
Global feels more like 2 games being played simultaneously, with a lot less interaction. Western UK really couldnt care less about India UK unless Japan threatens a single-theatre win. But barring that, Britain is losing nothing by losing her colonies in the Far East (which feels wrong IMO). To me, a better solution could be found to ‘Britain dumping all it’s money into Europe’ than the artificial split. Perhaps a minimum amount has to be spent in the Pacific or something (so every IPC would still matter to the Western UK, no matter the source).
In any case, I think this split income is one of the most disappointing aspect of Global since it really creates separation between the theatres that did not exist in the earlier titles.