What makes it uneasy is not only upscaling but they are generating new frames to make it 60fps. 60fps by itself feels fake (check some footage of The Hobbit that tried 48fps). It feels like video games.

It's kinda funny to aim for 60fps because modern video productions will often have 60fps footage that's too sharp and clean. So they heavily post process the videos. You add the film grain and lower the fps to 30 or even 24 (cinema) so it looks much more natural.

The question is if this is just habitual / taste thing. We most likely wouldn't prefer 24fps if the movie industry started with 50fps.

I actually went out of my way to watch The Hobbit at theaters with the 48fps copy because I thought it was incredible despite the wrerched 3D it was paired with. 24fps has always seemed choppy and confusing to me with any kind of action, and The Hobbit was a breath of fresh air

I consider it a genuine shame there's no way to release the 48fps cut on home media.

It is just habitual and I feel it's making movies look terrible, especially panning shots look like a stuttery mess that is almost unwatchable for me at 24 FPS.