Lynn make s a very good swing (and hit) at the ball.
No doubt.
My left wrist is flat a bit longer than Lynn. So what?
Well the so what is just what Lynn is saying, The golf stroke works BACKWARD from a wobbly point and that point---even if it is after imapct---can start to cause problems.
I have had a LOT of success with golfers TRAINING them to keep the FLW through the finish. Like our friend jim_0068, after they LAERN it that way, they then can let it, as Lynn says, do what it wants.