If directors were meaningfully able to choose between 24fps and higher framerates, then your argument would be a lot more convincing. Since in practice only well respected auteurs can get away with the extra cost and weirdness, I don't know if you can really call it an artistic choice.

I can believe that some scenes might benefit from the visual effect of a lower framerate, but I can also imagine other scenes, such as complex action and long horizontal pans might benefit from higher framerates. Also I think the "too real" feeling might work quite well to convey grittier settings.