Real life doesn't move in fast forward like 60fps looks
So your eyes go into overdrive just for 60fps games while reality around the screen is 30fps or lower ?
Look, I'm a firm believer of the 30fps+motion blur look for certain games, but this doesn't make any sense
If anything 60fps in movies looks weird because they are much closer to what real life looks like and you're much more likely to pick something that looks wrong or out of place.
30fps is like a screen between you and the content you're watching, it puts some distance between your eyes and the fiction while masking some fine detail.
The Hobbit certainly looked weird because our brain is conditioned by years of 24fps look for movies and 50/60fps for live reports and cheap soap operas, BUT also because the increased clarity of a smoother refresh makes it a lot harder to hide flaws in lighting, missing details in characters clothes, CGI etc.
48 fps made it a lot easier to tell what's real and what was built on set in the Hobbit.
This is especially true for videogames. 60fps increased perception of depth makes geometry stand out, it's much easier to spot polygonal edges and flat surfaces. increased clarity makes the image in motion appear sharper.
These can be seen as advantages or disadvantages depending on the result you're going after.
30 fps (especially with motion blur) help cheat your eyes and hide typical CGI flaws, so when going for filmic or even realistic look, it might be your best bet.
I myself prefer the look of 30fps+motion blur in some cases (and i absolutely hated 30fps games especially around Dreamcast era) and it's completely understandable that it would be an artistic choice.