Having read a lot of books on the lead-up to WWI, and a few more on the conduct of WWI myself, I must say that the entire thesis comes across as rather forced.
First off, it's rather well-known that Germany's fear of a two-front war and encirclement led to much of its preliminary war plan. On the other hand, the circumstances that led up to such a scenario were not preordained from its construction. It was largely a result of the early 20th century Germany managing to piss off just about everybody else with amazingly inept foreign diplomacy. In particular, Germany decided to give up its relationship with Russia, which France eagerly took advantage of and bound the two countries fairly close together. Germany's naval race with Britain also did much to antagonize it for no real gain.
Also, Alsace-Lorraine is much oversold as a cause of war. It's true that France did want Alsace-Lorraine back. But many in France were not prepared to go to war to actually achieve that aim. Instead, the situation in France post-Franco-Prussian War was to try to find allies that could help divert German attention, and their allies were the Russians who needed lots of help to even minimally qualify for that role and the British who went to rather great lengths to try to avoid actually fulfilling their commitment when August 1914 came around (Germany marching through Belgium gave Britain the political cover to actually commit).
As for whether or not Germany could win, that's a difficult what-if to answer. The Schlieffen Plan was, in the abstract, a masterpiece of precision planning and timetabling. But the plan also had very little room for change if things didn't work out. Belgium put up an unexpectedly fierce resistance, Austria-Hungary had a surprisingly hard time in Serbia, and Russia was doing better at first than Germany expected. In the end, the German momentum and logistics chain was incapable of carrying them to Paris, which completely ruined their plans and any hope of a quick end to the war. And Germany was completely unprepared for that scenario (to be fair, no one else was).