Yes, but the claim to be "the only true religion" or the only true version or Christianity put a burden upon Jehovah's Witnesses to be more accurate than any other religion, including the first century Christians.
It's a burden they put upon themselves by making the claim, yet when someone calls bullshit on them for it, they're always ready with the weasling and the side stepping explanations.
The fact is, you can't claim to be influenced directly by holy spirit in your leadership, which by biblical definition always comes back to God with results and always pefectly accomplishes what it sets out to do because it IS the power of a God that the Bible claims is perfect in all his ways, and always be seriously screwing up Biblical interpretation.
Human imperfection is always the beg off, and no doubt, the actual cause of being consistently WRONG, but dammit, then quit making all these claims to be "the faithful and discreet slave" which is by definition inspired directly by holy spirit. You can't be BOTH! You cannot be WRONG this much and also be the spirit inspired faithful slave!