To build skill, we must learn how to curve the ball. We must learn to do this intentionally so if it happens un-intentionally, we can do something about it. Also, golf is not played on a flat lie.
Golf requires us to swing differently and control the club face. No matter what the coaches that LOVE Trackman will tell you, you need variability.
When you learn how to curve the ball and control the flight, it will take your game to new heights.