not sure why he didn't continue it down further. I have to say, this was not the smoothest experience I've had getting custom work done. took 2 weeks instead of the one he quoted - that I can understand, but he would tell me it would be ready to pick up, I'd call and confirm (he's an hour from my house) and he'd say - oops, xyz happened and it isn't ready...
he had a large off-road event he was coordinating down the road and I suspect that had his attention more than my bumper. Oh well, lesson learned I guess.
The bumper itself is top notch - but you are right about it not covering the lower unibody. Perhaps this calls for the sawzall? we'll see...