Thanks for your feedback. It's great that we can discuss this topic. And cool to see that you are a subscriber! :)
People probably do this differently, however this is the way we do it: Whether we are making a short film, feature film or documentary with or without a storyboard, with or without tripods, steadycams or shoulderrigs, we do take the camera of whatever rig it's on and test out the light, composition and blocking. This is to quickly figure out that the shot looks good before locking the camera to the tripod/steadycam and shoot the scene in that angle.
When shooting fictional films, you often know when the moments you want to capture happen. And don't get me wrong, I prefer having enough time to rig and shoot scenes the way I want. But when shooting videos like events, documentaries etc interesting moments happen when you least expect it. Therefore you might only got seconds to shoot it. By shooting handheld with just your hands, you can get in the right angle quickly, drag focus, change exposure and capture the moment. And you can do this without getting a terrible shaky shot. You are often just fine with using the stabilising techniques on set, but you can also add the warp stabiliser as a bonus. When you know how to use the warp stabiliser, you will save a lot of time on set. No, I'm not a fan of rushing things, but sometimes working fast is crucial as mentioned above.
The pretended scenario we shot in the video, was filmed within an hour and a half as that was the time we had (I should have mentioned that). I could off course shot it with a steadycam/gimbal, but I think it would have limited my flexibility and way of telling my story.
Again, people have different ways of shooting. This is just one way.
Thanks again for your detailed feedback.
All the best,