If the GB changed a major teaching, would all witnesses just go along with it?
That's what being a JW means, the old guys in Brooklyn think of something new, write a newfangled letter about it, throw in a few scriptures and they all say "oh, what a loving provision Jah has provided us with", otherwise known as new light, or what we call it here, flip flopping.
Their minds are closed, that's why I say JWs would make great Trump supporters, all that BS he spews out his followers just eat it up and defend him, just like the Dubs do.