The LaunchBall approach certainly has a lot to do with that.
To evaluate a hitter you only need to look at the slash line and the OPS.
Batting average matters, but OBP and SLG do tell you more. They tell you if the guy is getting on base without hits, and they tell you if the guy is hitting for extra bases.
J. D. Drew was a classic example of a guy with a mediocre batting overage but an impressive OPS. Because he really did take a lot of walks and he really did have serious power. OPS treated him more fairly.