Here is the website of Shelly Watts-Cross, the King Shepherd breed founder: http://www.kingshepherd.com/index.htm
She was originally a breeder of Shiloh Shepherds under the ISSR, the registry of Shiloh Breed Founder, Tina Barber. Tina took her to court, as she chose to breed outside of Tina's very strict standards. As Shilohs are still 'a breed under development', all breedings must be approved by the breed warden (since Tina's death, this is her daughter, Lisa.)
Here's the record of court judgement, which states Shelly can no longer call her dogs 'Shiloh Shepherds'.: http://www.shilohshepherds.com/buyersBeware/1996CourtCase.htm
As for the health of the Kings, many breeders of long-coated oversized dogs DO make an effort to eliminate health problems from their stock. It's like purchasing ANY dog: investigate before you invest, Caveat emptor
and all that...
And to each his own: if you like this sort of dog, fine! Just don't expect it to be everyone's cup of tea, and you will not be able to show them as they are not a recognized breed under AKC or CKC. I think the UKC recognizes them??