I might be missing an inside joke, but didn't Arizona implement a humidor this year, which was thought to decrease offense? Also - Goldy had a brutal start to the year and was having REAL trouble with hard throwers. I think at one point he was the worst hitter in baseball on fastballs 95 MPH+
Like all great hitters (he's 43rd all time in wRC+), he made the adjustment and is now pounding ML pitchers harder than Ron Jeremy circa 1986.