The GENI tree needs not be "the truth, the whole truth and nothing but the truth", after all this is also one area where we are presenting our assumptions.
But in such delicate issues as the immediate descendants of Jesus of Nazareth it is only fair to expect that whoever updates the profiles of his descendants would also add sources used. This would increase the value of these hypothesized persons at least a bit. Let us try to be objective in our search!