I absolutely love this teams pitching and defense but it would be pretty hypocritical of some who have laughed at other teams run differential in the past while ignoring ours at the moment. It's a clear indicator of what most of have feared and is similar to last year... we only win games that our pitching and defense carries us to.
We need to start seeing some games where the offense carries us or it could be the same story come the playoffs again. We will be forced to go against another teams ace in the postseason so pitching advantages will pretty much be cancelled out for the most part. At that point, it'll come down to which batting lineup and bullpen can outdo the others.
In the end, I'm trying to say that particular advantages in the regular season such as who your number 4 and 5 starters are don't mean much in the playoffs. They will definitely help get you to the playoffs, which is very important, but other aspects of your roster are put into focus in the playoffs so can they step up when it matters?