Did you come in afterwards and re-punch through the holes to get the now flattened "teeth" to bite in?
Probably...I am not sure now. The door panels were fought together probably item #2, after I did the seats...long ago like in 2013. They were a real fight, and they were a fight to fit them to the car last year too! Both were warped like a banana! I built a fixture to warp them back and put them inside a hot car. That fixed the warp. Then the handles wouldn't reach.
I still want to try a different set some day. These are circa 2012 purchased Dashes Direct.