Reddit has no monopoly on misinformation, as evidenced in this thread!
Focusing on shutter speed, a change primarily affects exposure, and has a secondary effect on
motion blur (link). This blur affects how we perceive motion, but it is just one of several perceptual cues.
An increase in exposure time (shutter speed) means more blur
for moving objects. A decrease in exposure time (shutter speed) results in less blur
for moving objects.
Another major contributor to motion blur is how fast any objects
or the drone are moving.
Such standards are made to be broken and experimented with, and we no longer have the relatively high expense of film stock and processing to limit our testing.
In my personal experience:
Longer exposures than the cinematography standard are mostly perceived as miscues - something doesn’t seem right. It’s fun to play with, and can be useful as a creative effect, but I don’t use them except as a creative effect.
Shorter exposures than the cinematography standard are mostly missed by viewers, “mostly” because most subjects and video-shooting drones are not moving fast enough most of the time to produce motion much blur anyways. I use them routinely in many situations, up to perhaps 1/200th of a second for 60fps.
A too-short exposure time will sometimes result in a motion artifact variously called: stuttering, jitter, janky where motion doesn’t seem smooth.