Center of Mass of some rocket stages would shift considerably which makes reusable stage / reentry vehicle difficult to design.
Information of wet mass, dry mass, CoM and TWR of each stage section is needed, which is different from the current stage information that involves remaining stages together rather than individual stage section.
Also CoL of pitch / yaw axis could be different in aircraft or shuttle design, so it's better to display them independently.
This would be a great way to make SSTO