Falloff Offset parameter
This is how I’m using the Falloff Offset with the Freeform lights to simulate a fluorescent lamp. It helps to control the end of the light falloff and soften the borders of the shape:
https://www.youtube.com/watch?v=aweGLxWYKjs
If you remove it without any alternative, I would have to redo all my lights.
I’ve neither used Parametric lights nor Sprite Cookies yet.