With most people you would be fine doing that. With a few people, you would literally have to stick with the rule and this is a prime example of why these people require the letter of the law, so to speak.
Although, I would agree that:
Number of games = n
As n increases towards infinity
The limit on the number of games that Germany is in position to take Moscow just before Japan declares war on Russia, and Russia or Japan have not yet declared war is zero.
I could be wrong, we do not, yet, have enough data to support my statement, but I leave it to you to disprove my hypothesis.
You are right