Ah, so for the sake of capturing conceptual / perceived "objects", the global shutter, at least, can do a better job at what would be perceived during a short period of time that the shutter opens and captures each pixel.

A rolling shutter might capture points along the way but leave gaps in comparison. In the laser pointer example, you'd probably want a longer exposure, but the global shutter would still give you uniform capture better matching what your eyes / brain perceived.