My recollections of the various threads includes "it's an official document, therefore it is right, even when it is wrong."
Which argument has also been made in favor of the rulebooks.
Nor does authority in grevious error stop it from being authoritative. So why accept something as true simply because it is authoritative?
That is the way it works in law, for one thing. If something is the law- be it through legislation or a court decision- it is the law until and unless it is changed by subsequent legislation or court decisions.
To continue the analogy, then, the FAQ and similar handouts from WotC would be "the law"- flawed or not- and it would be incumbent upon us as players to pepper them with e-mails that detail why "X" rules decision is bad and should be changed in one way or another...something that would be easier with the aformentioned presentation of rationales behind rulings that is so often absent.
Its not as if WotC is ignoring us, after all- how many times have they tweeked the Polymorph spells?