Looks stable from ... until the first Bodnwelle

Property me concerned about the children to Keep the fun the holder to driving on vacation. By lying with the holder was a large list of CA Business warns against use in bad road conditions. Have I thought nothing of it because the holder actually looks stable.
Even before the trip went off properly but still came a milled edge of a road construction site - clicks and the Tablet was on the ground and the atmosphere in the back seat was in the basement.
The weak point are the four small plastic connectors that connect the rod to the tablet holder. (See image)

Update:
the excellent customer service has changed my mount.