finger room under lift gate

To Whom it may concern,
I am a 35 year ford owner.  My last purchase is my 2010 Ford Expedition Eddie Bauer edition.  My safety issue is the lift gate. My hand was on the bumper while looking under the vehicle, the door closed and pinched my fingers . There is no room between the bumper and the bottom of the door. The door should be made shorter with a space between the bumper and door to prevent any possibility of future  freak accidents and smashed fingers.