I never knew Phara Arabians existed. I love their coloring. More people need to know about them.
Sabino chestnut Arabians aren't exactly rare, so I'm not sure why you think they're so amazingly wonderful that 'more people need to know about them'.
These horses are lovely, but so are many other well bred Arabians. Except for a small contingent of people, Arabians aren't popular anymore, so breeders need to consider to whom they'll be marketing their horses. Color is the least
important thing when breeding. Athleticism, temperament, correct conformation, and soundness are far more important.
Concentrating on a particular bloodline isn't something new, and the Al Khamsa people have been doing it for years. Heck, anyone with a good
breeding program usually concentrates on one or two particular bloodlines to make sure they're throwing the type of horses they want, for the market to which they're trying to sell.
No breed, no matter how versatile, can do everything well. Arabians have their faults and shortcomings just like every other horse out there. I love the breed and have owned them for 33 years, but I don't buy into all the hype.