It is the correct setup... the gimbal has dampeners on all 4 corners and 2 pins in opposite corners.
However if the any of the dampeners have pulled out of the holes you should pull them back through.
A loop of dental floss can help you pull them through, and a small pair of hemostats works well to
ease the rubber flange all around that hole. You should remove that upper cover plate from the
gimbal and check that the dampeners are all completely seated correctly on the other side too.
The premise behind it is, whatever is minimal to keep that camera steady. In the event of a minor
crash (which I have had), the mount will pull apart relatively easily... I had also thought, well that
should be shored up somehow. But if it was more securely attached, it will be likely to transfer more
kinetic energy directly to the camera, resulting in more damage. With the camera being $500, and
the replacement mount being $10, I'll blow through as many mounts as necessary.
It's also cheap enough that it's worthwhile to order a set in advance, so when necessary to replace,
you don't have to wait a week on shipping (or pay additional for Expedited Shipping).