You are, of course, entitled to your opinion; but that is only your interpretation of events. The Allies considered intervention in the RCW vital to open up the eastern front again and draw CP units away from the west.
WWII was essentially 3 conflicts which happened to take place at the same time, yet we constantly talk about it as though it were a single event.
The conflict in Russia after 1917 was part of the same event as WWI to a much greater extent than the European, Pacific and Chinese conflicts were a single “World War II”.
Regarding latest official RRR: yes it is a big improvement, but I still think the CPs need an extra incentive to accept.
I would also replace -
The Central Powers must keep a unit in “shared” OR tt at all times.
with -
The Central Powers must keep a unit in controlled OR tts at all times in order to collect income from them.