I think it'll help, given the axiom that you learn more from defeat than from victory. In 1999, a generation of young American golfers watched that American comeback and thought, "Man, would I love to be a part of something like that." Snedeker, Dustin Johnson, Webb Simpson and Keegan Bradley would've all been teenagers then. Their counterparts in Europe saw it and thought, "Man, I NEVER want something like that to happen." McIlroy, Kaymer, Molinari, Rose, Colsaerts and Garcia (who lived it!) were all teenagers then.
So in a dozen years, perhaps we get to turn the tide with a crop of young golfers who watched yesterday.