ALL OTHER TEACHINGS HAVE ONLY SECONDARY AND SUPPORTIVE ROLE, HENCE CHANGE IN THEM WOULD NOT MATTER.
If you really believe that , then Jehovahs Witnesses had only ONE really good idea. Gods Kingdom as the only hope for mankind.
The rest is lies, conjecture, bullshit, personal opinion, fantasy, foolishness, speculation, tom-foolery, and out and out stupidity. And if that is the case then all those secondary teachings DETRACT from rather than give support to the idea of Gods Kingom.