Another thing to see in our recent play (not that this insight is especially brilliant) is who we did it against. SF's not great, but they were at home on the West Coast. LAD was incandescent. BAL and NYY are wild card contenders. Admittedly, CHW blows and a half-decent team would not have gotten swept in that series. DET is very very good, and TB is in current possession of a wild card. So we're pounding the patsies and more than holding our own against good teams.
Sure, luck has factored in. We've missed some of the opposing teams' aces, like Kershaw and Sale (though he has to throw a CG to get a win, judging by the results vs. NYY). We've hit 173-foot grand slams (Napoli say thanks, Yankee Stadium). But then we've also just matched up, strength to strength, and won (i.e. Scherzer vs. Lester).
So it looks like we're going to win the division. We're scoring runs and we have a fearsome 4 man postseason rotation. We all know the playoffs are a crapshoot, but let's just say there's no one saying, "Man, I hope we end up playing the Red Sox!"