Are you recording in 48 or 60fps? I see a lot of aliasing going on in that video. You should only use 30 or 24 FPS with the Mavic sensor limitations which result in aliasing when recording above 30 FPS. Additionally, is this video copied from the phone/tablet controller device, or off the microsd card of the Mavic? I'm suspicious because it is showing 720P resolution which is the same as cached video on the controller. You should be reviewing the video on the microsd card from the Mavic which has a much higher resolution and quality. It seems dumb of me to ask this, but the video doesn't looks like what you should be getting from the Mavic directly.
Perhaps we're not getting a good representation of what you're seeing with the horrible youtube compression. In that case you might grab some frames from the video or take some pictures.