Yep, EF body to PL lens mount only works on a selection of lenses, mainly zooms, and you also lose the strength of an actual positive locking mount because the weak EF spring mount is still a part of the chain.
Both your video's thumbnail and the "hero shot" for the fusion at 0:40 are actually showing the GoPro omni which is misleading.
The GoPro Fusion is actually only slightly bigger than one GoPro, not the huge blocky 6 camera array that the Omni is...
Geez...why are these comments comparing this to any type of 35mm or S35 camera? The only reason someone would use this for a film shoot is if they needed the FOV of a Medium Format camera (assuming the video isn't a HD crop)...apples and oranges people.
Excluding the unrealistic WWE moves featured in the video, it's sexist that the realistic "between the legs" Jiu Jitsu moves are mainly used by women instead of both by both men and women in cinema. The sexist assumption is that men don't do moves involving between their legs and that only women can get away with that.
Huh the post came back haha
Note to self...in order to hire Greig Fraser, have a director named Garth.