Aphrodite
Banned
Not in the least. The offer really is based on the German's fear of France. The offer is consistent with their opinion of leaving a mobilized France in their rear- it is suicide. The plan was kept only for the possibility of France being neutral. When they realized that wasn't likely, they ended all work on it.But that demand was made by the Germans to be double-edged. Fine if accepted, but the Germans, except for the Kaiser, didn't think it would be accepted. So the other purpose of that demand was to set up the pretext to help justify the strike west first strategy to German and world public opinion.
This is further evidenced by the Kaiser's letter to King George that if France was neutral he would go East only if French neutrality was guaranteed by Britain.
Moltke thought that guarantee would be worthless and still wanted to go West because the French were likely to break through the German lines and reach the Rhine before Britain could intervene.
East first works around here because people make enormous assumptions (British neutrality, France respecting Belgium neutrality, the Belgians resisting the French, the French and Russians not making a few simple adjustments which are obvious to anyone trained in military matters) which no German could make.
Further, East first thread's assume the Germans achieve feats of arms which far exceeded what they did in our time.
Finally, the East plan assumed Italy was pinning Six divisions in the Alps and providing the Third Italian army on the Rhine.
The Kaiser is serious- only a declaration of French neutrality with guarantees would spare France invasion
This is not a piece of German war planningThe premise of the OP isn't that a last-minute, overly complex set of demands with GB guaranteeing French neutrality and France neutering itself militarily is what makes this war an east-first affair, it's that the Germans deliberately base their planning on east-first offensive or defensive/counter-offensive operations from the beginning of the July Crisis, owing to the Crisis's origins in the blank check to the eastern ally, Austria.