I got mine new from Dowsar too. And as it came it didn't make it into the water (luckily, actually) before the bolt attached to the motor dropped off and into the transom well! Then I noticed that the screws holding the component brackets together were loose, and when I tightened them up, (not right tight, but with slight play) that it wouldn't work without binding, which I concluded was why they were left loose in the first place.
So I had to replace some of the hardware and add locknuts so there was just enough play to work until I can get a more permanent and quick-releasing solution.
Art did tell me that the motor did not need to be disconnected, and, as you point out, that is true.
As I mentioned, it's reliability and longevity of the steering mechanism, which we know is prone to failure as we have seen on older boats, that is my concern. Maybe for precisely this reason (?)