You can't control a video to see what you want to. You have some control with this underwater Street View. It's the same reason why I find Street View much more valuable than watching videos on YouTube of people driving.
http://www.nimmobay.com/media/360-video/360-video-nimmo-bay-...
Attach one of those to a diver at popular destinations. On Google maps, show a little video icon. Click the icon, watch, and look around as they swim the location. It's now easier to navigate, and gives you a better representation of snorkelling or diving in that area.
Street View is more convenient as it offers the same 360 degree view as the Immersive Media videos yet more control like zoom and navigation.