But Germany wouldn't be able to hold anything it would get from engineering the Austrian collapse. The best thing for a German victory is an Austria strong enough to keep the east from resolving too quickly. The only reason I could see any early German harassing of Austria is if Austria is strong *and the others in the east are weak* - in which case this is meant to keep Austria from running away with the game by 1905-06.
But the core problem is that by devoting a substantial effort to capturing and retaining Austrian holdings, Germany becomes less able to win itself. It's not enough for Germany to sabotage Austria to stay ahead of Austria; in the situation I mention above (where Austria is going to steamroll the southeast), Germany might be preventing an Austrian win, sure, but that's not going to matter much if, say, England or France - who have no real reason to fear this consequence - decide to pounce on Germany while Germany's attention is divided.
All this seems equipped to do is:
(a) Accelerate the resolution of the east without affecting the west, assuming the east is relatively balanced in terms of player strength or that Austria is weaker than the other eastern players. This means that Germany gets crushed by Russia shortly afterward, in all likelihood, whether the midgame moves to R/T or R/I.
(b) Keep the east mired while distracting Germany; this does keep the midgame from resolving with a strong Russia, which helps Germany, but does so by making an E/F significantly more likely.
Basically in short, all I can see happening from this is an empowered E/F or R - the two biggest threats to Germany's existence. So I'd have to say that it's not a good idea. There may be some circumstance where it could work, but I'd have to think that even if it does work that there would be some better choice.