“He could have asked himself, ‘Why would Jehovah send an angel to someone else with new instructions for me?’ The prophet could have asked Jehovah to clarify the direction, but the Scriptures do not indicate that he did so.”
Based on the above, the only valuable and reliable instruction from Jehovah would be a direct first-person experience as anything else is questionable hearsay. Following that logic, why would anyone listen to any prophet from the bible, Jesus, the GB, or anyone else or even the Bible itself? Which is one of the main reasons I am an atheist.
If you want to leave the JWs just tell the elders that you asked Jehovah if the JWs were a “true prophet/religion” and Jehovah said “no”. And, if they get upset, quote the article and tell them you are following the counsel and don’t want to get eaten by a lion.