Anyone use a QA1 K member on a 74 Duster

I don’t know why anyone would want to use this K. The mounting is what I feel is seriously lacking. The OE k has double wall precise holes with tapered washers. The QA1 has sloppy tubing and long bolts creating a cantilevered mount. How is it that Mopar make 100s of thousands of Ks that fit perfectly and QA1 has to use tubing for mounts. Seems sloppy and weak to me.
Since when is round tubing weak. There is only tubing on the front mounting points. The back ones are very similar to stock.
The design is to make room for headers and big oil pans which it does very well. Previously I had broken the passenger side mount on the frame off several times.