The main issue with motion interpolation is that most people seem to think it must be all or nothing.
I play a lot of 60+fps games, but don't like HFR in movies, be it native (Gemini Man) or interpolated. It does not look like a movie to me, because our brains "know" what a movie is supposed to look like as a form of art.
But I also think raw 24p motion is mostly unwatchable on modern displays.
Here is the thing: when looking at pure motion, 24p will not look the same on an old film projector, a CRT screen, an LCD panel, or an OLED panel. I believe we never experienced 24p motion as we do now because the tech was different. Old film projectors had shuttering (sometimes even double or triple) which played on flicker fusion (a trick many displays try to emulate with BFI), interlaced video naturally smoothes motion, and old LCD panels had a slow response time which kinda smoothed motion as well.
But raw 24p on OLED screens looks like a slideshow, because of the insanely fast response time. IMO, this whole "purist" trend of "NO PROCESSING" and filmmaker mode is absolutely ridiculous. You need to consider the tech behind the display and how it actually looks.
So I do think a tad of motion interpolation is necessary on these types of displays. Think 4/10. Not enough to lose the cinematographic look of a movie, but enough to make it watchable on an OLED screen.
It's trivial to take a 48 (or, indeed, 120) fps movie and turn it into a 24 fps movie.
It's not.
When you shoot 24fps movies, you usually use a shutter speed of around 1/48-1/50 to get "regular" motion blur.
If you shoot in 120fps, you don't get any motion blur. So even if you ditch 4 frames and keep only 1 frame every 5 frames to reach 24fps, you will end up with a terrible looking slideshow: a succession of very sharp pictures with no motion blur at all. It would be unwatchable.
To avoid this, you need to add fake motion blur in post after conversion. It's not impossible (After Affects even has a couple of native filters for that), but it's not "trivial" either, because as always with motion vectors based algorithms it can produce artifacts.
So, fake pictures with MI, or fake motion blur? Pick your poison 😄
Movies and TV shows are storytelling. The story is king.
I disagree.
"Story" is abstract. It must be told.
Imagine your parents experienced something unusual and funny while shopping together, and they want to tell you. Maybe your mother will tell it to you in a funny and interesting way, and your father in a dull and boring way. They experienced the exact same events, but one tale is good, the other is bad.
You can have the better story in the world. But if your book is badly written, if the actors playing on stage are bad, if your movie is ugly, or if your drawing sucks... the final result will just be plain bad. Or at the very least, the story will have to be absolutely outstanding to overcome these drawbacks.
A movie is a combination of picture and sound. It is experienced through eyes and ears. It does not only need an interesting story. It must also look good, and sound good.