Tradition is valuable but not authoritative. Only Scripture is authoritative. But you have to take Scripture as it is - the Word of God in print about the Word of God made flesh.
but, the church in this article would say they are being scriptural...see, that is the beauty of sola scriptura, it can be made to say whatever your particular church wants it to mean...
the three-legged stool of scripture, sacred tradition and the devinely ordained church dont run into these issues.