I remember the first time I went to Europe and watched PAL broadcasts, I couldn't help but notice the strobing of 25/50. I think we are so used to seeing one mode or another, it's easy to see when not interlaced or without pulldown added.

Shooting with motion smoothing on or 1/24 shutter speeds definately lessens the perception of strobing, but also introduces much more motion blur. I think it's simply an option. To me I'll eventually find the best recipe for what I'm shooting. I don't immediately discount these settings because they aren't originating in the film domain.
Dave B