No. Woo Ching is a respected head master of a Tibetan White Crane school in Boston, I believe at least one of his teachers was Chan Hok Fu. He was from a small village near Luofu. He recited a history of the villagers mixing many methods, including Pak Mei with Tibetan White Crane. One of his students (senior instructor) has a blog where he tells of the story, I also have heard the same thing from my shifu, I have no reason to doubt the validity. If I'm not mistaken, the late Lama Pai master Chan Tai San also studied Pak Mei under CLC. Not hard to believe that a small village would patch together a method based on different arts they learned. Some oral legends of Tibetan Crane mention Emei.