I'm not sure if analytics has much to do with it. Analytics say to shift on defense when playing defense, and (probably) to try not to hit into the shift on offense by BBing, hitting the ball in the air, or going the other way, and maybe with a bunt depending on the type of player.
The way I see it, the commissioners office for decades now -- at least-- has had a serious problem with pitching and defense. Nowhere in Manfred's bullshit is anything about raising the mound or increasing foul territory or pushing fences back, etc. It's all anti-anti-defensive nonsense. They want a faster game on clock time with more offense, more home runs, etc. .
But a pitching and defense-based game, for me as a fan, is the most appealing form of baseball. I also have an attention span longer than a chihuahua which allows me to still pay attention even if the game exceeds 3 hours in length. I know I am not the only one. It seems, actually, that most hardcore fans -- not necessarily some idiot in a suit in the press box or a kid in front of the tv with a video game controller -- actually prefer pitching and defense-based baseball.
With Manfred it's not "missing the forest for the trees" because there is no forest. He lives in the moment, cares only about $$$ now, and short-term objectives as they may be worked or completed now, and doesn't give a shit about the long-term best interests of the game, or the history of the game. He'll pay lip service to topics like minorities and diversity because he's looking for the cash that can come with it. But he's a morally and ethically-empty prick who doesn't know a thing about baseball and doesn't deserve his position in baseball or even being included in baseball any more than any qualified person in baseball history has ever deserved being excluded from baseball. He's a nitwick fuck who can go pound sand / lay face-down under a horny rottweiler and bite MyPillow.
But yeah, it's been anti-defense for a long time. Manfred is just making it worse. He's trying to flush the game down the toilet faster than anyone else.