The guy that sells them runs ARH because the set for his 2011 were given to him for free, and because JBA did not offer a 1 3/4" header when he built the 2014 8sp.
I started off with the JBA longtubes on my 2014, and they went on great without any fitment issues whatsoever. The only reason I took them off was because the 1 3/4" primaries are better for the 8sp trucks, and JBA did not offer them with 1 3/4" primaries at the time. Now that JBA offers a 1 3/4" Header, I wouldnt hesitate in the least to run them again on my own trucks.
And each header is made on the same jig, so the reason why some trucks have had clearance issues with the steering arm is more than likely due to the engine placement, not the header. I've had guys loosen the motor mounts, shift the motor over 1/8", and then clear the shaft...this applies with both ARH and JBA with the 1 7/8" primaries.
You are adamant about talking down a manufacturer when you have never run anything else to compare them to. As someone who has run both brands and both size primaries, I would run JBA again in a heartbeat. Love my ARH headers as well, but most guys are very happy with the bang for buck they get from JBA.