Nah, we still woulda won that series, but in 7 games. Plenty of teams have come from 2-0 down.
Seriously, you could also say we were very lucky in 2004 and 2007 to come from 3-0 and 3-1 ALCS deficits. So you could say we're incredibly lucky to have 3 titles. If that's how you to choose to look at it. Or you could say we should have won in 1975, 1978, 1986, 2003 and 2008.