The reason being:
"All of our teachings are based on the Bible, not on the writings of some religious leader in the United States." — 1 Thessalonians 2:13 .
(item #3 on jw.org web page)
Wow can that be? As far as what I understand, all the writings originate from Brooklyn, NY, USA.
Has something changed? Or is it just disinformation?
Many doctrines JWs adhere to I have never seen to be teachings of the Bible. But many of their doctrines for sure were conjured up in the ivory tower and had their beginnings there.