Those two products are doing totally different jobs. This is great for events, VR, and so on.
The BlackMagic design is aimed squarely at cinema use, where BM is already one of the industry standard platforms for color grading and increasingly for editing, and already highly respected for image acquisition. This matters because film distribution agreements increasingly mandate specific technologies for production to mitigate the risk of customer complaints abouts image quality.
The 3d part of the camera is somewhat relevant for the cinema release market (and VR headset users who want to watch a movie in 3d...but I think this will remain a small market because wearing a helmet/goggles to watch a movie is inherently anti-social), but even if you never plan to release in 3d it's nice to be able to acquire that way for vfx purposes. Recording ground truth 3d information during acquisition is always going to be superior and cheaper to inferring it computationally from a monocular image.
The BlackMagic design is aimed squarely at cinema use, where BM is already one of the industry standard platforms for color grading and increasingly for editing, and already highly respected for image acquisition. This matters because film distribution agreements increasingly mandate specific technologies for production to mitigate the risk of customer complaints abouts image quality.
The 3d part of the camera is somewhat relevant for the cinema release market (and VR headset users who want to watch a movie in 3d...but I think this will remain a small market because wearing a helmet/goggles to watch a movie is inherently anti-social), but even if you never plan to release in 3d it's nice to be able to acquire that way for vfx purposes. Recording ground truth 3d information during acquisition is always going to be superior and cheaper to inferring it computationally from a monocular image.