Yes. Terry's design incorporates the C-ROK style reinforcing plate into the bumper mounting plate that is bolted along each frame rail. Those plates are bolted through existing holes in the frame rail, and the bolts which hold the steering box to the inside of the frame rail now also pass through the bumper mounting plate, which is 3/16", I believe.
On most other bumper mounting systems, the bracket used was similar to the Mopar tow-hook bracket package, no longer made. Those brackets only had the bare minimum of plate to surround the additional bolt holes, and actually avoided the bolts which hold the steering box in place.
The bulkhead plate ties the left and right frame reinforcing plates together, sharing any loads one rail sees with the other side. The simpler steering box braces(rusty's, jks(?), etc.), which clamp around the spline output of the box, above the pitman arm, and tie to the opposite frame rail have been shown to cause the steering box to pivot about that clamp at the bottom of the box, resulting in cracks in the horizontal(bottom) portion of the frame rail. Terry's plates would stiffen the whole rail with the tie-in to the bulkhead plate, lowering the susceptability to the twisting force applied to the frame rail by the steering box trying to turn, say 33" to 37" tires, especially at slow speeds.
Terry's designs not only result in improved impact protection to the vehicle itself, but increase the unibody's ability to resist the effects of added leverage on it from larger tires, lowering the likelyhood of death wobble.
A quick read through of the page on his design philosophy will help understanding.