Not a coach but I played DB mostly corner
You are usually coached to turn your head around at catchpoint by reading WR cues... The issue is once you're beaten your technique sort of goes out the window and you're stuck just trying to prevent the catch.
It's not ignoring where the ball is, it's getting out leveraged and using whatever athleticism you have available left to stop the catch. Usually when I see guys tracking the ball they're in perfect position and are in control of the situation enough to be able to lean/leverage and locate