BooNZ
Banned
I propose, for no reason in particular, that the German eastern plan is updated for 1914 and published on 1 April. The Russian plan update went live a couple of months later and would have been in draft at the same time as the German plan so couldn't really take it into account. No real subterfuge, just bad luck based on bad timing.
Would it just as likely be like a high stakes game of rock-paper-scissors, with Russia guessing wrong. An East first strategy does not require the level of finesse of the Schlieffen Plan. I understand after the war a high level German railway official claimed a last minute pivot East was within the German rail networks capacity (cannot recall the source or evidence to support claim).
The Russians could not afford wait-and-see, putting their mobilisation on hold until the German choice was confirmed.