Deep acceleration, Early barrel speed and a deep turn (rotational point)The problem is that the typical "bat-lag" approach includes pushing the hands forward, which moves the center of rotation for the barrel, and may make it more difficult to achieve bat-forearm alignment. Early barrel speed and a deep turn leads to the position you see Khris Davis in (bottom right in the pic above). You can't get there if you lag and push.
I'm not sure how much velocity penalty there is for getting to alignment early and carrying that velocity through contact, but I suspect that's a better trade-off than being late. One thing I also see with hitters (including my DD) who aren't getting to alignment before contact, is that the hands often are moving left around the body and pulling the barrel laterally across the ball during contact, which costs power.