Although Strasburg was totally against the shutdown at the time, he's since admitted that it was for the best and that has likely helped his career. It's also generally accepted here in DC that the Nats' handling of the shutdown, which was done with the player's health and future as a primary consideration and other examples of player focused culture (Daniel Hudson's recent paternity leave for example) will greatly enhance DC's chances for retaining Stras when his opt-out clause comes up this post-season.
Agree that winning titles is hard. You don't have to sell that argument too aggressively to a DC sports fan. But going for a title at the risk of a young athlete's health and future is morally questionable. Strasburg's metamorphosis from fireballing fastball pitcher to a more nuanced hurler with less reliance on power has had a LOT to do with his longevity this and last season. His curve and change this year have been filthy.
Jack, your argument that you "...don't think anyone has been proven right," is ultimately one that can never be proved. We can't go back in time to see what would have happened if they'd continued to keep Stras in the rotation. Would they have gone to the WS? Would Strasburg have blown his arm out again, leading to a highly likely end to his career? Who knows? I do know that we have a healthy ace and that the Nat's are going to the Fall Classic. Pretty hard to argue that there wasn't merit to the shutdown, in my opinion.