To answer the OP's initial question and not off topic like this has gone...the short bed will work with the Anderson hitch. It does require situational awareness as does any hitch. Take it too far and there can be damage. The Anderson pulls fine. Just be aware that any placement of the pin further back of the rear axle will affect the ride somewhat. So that offset ball pushing the pin further back will work but you might get more "chunking" or sag. And that will be with conventional or Anderson hitches. The only difference you can see between the Anderson and conventional setup to the trailer will be a conventional will have a larger contact area with the pin box. I dont see how this stresses the frame more. It could break the pin off of a badly welded pinbox but maybe there is something I am missing or its just CYA of the manufacture. The new Morryde pinboxes are much beefier than the standard pinbox that used to come on the pre 2019 models.
