Holly -
Even if we accept the JW version of this ; i.e.; 1- that we are living in the last days 2- that the preaching means open evangelicalism door to door as they do it - there are still serious matters of thought here.
I spent 35 years + doing the JW version of 'preaching'. Mostly I spent time walking, riding, sitting in the car, knocking on empty doors or not at homes. When I did speak with someone, I was not interested in witnessing to the sacrificial value of Jesus' ransom and the person accepting Jesus as Savior - I was interested in, 1- placing literature, 2- starting a book study to study said literature, 3- making return visits or conducting book studies so that the person who took such literature would come to the Kingdom hall and study more witness literature.
And I was efective at that work - I 'aided' at least 10 persons to become witnesses. But I aided no one to develop a personal relationship with God and His Son, Jesus. I helped them to become robotic and nuerotic in doing as told by an organization - but not in reliance on the Bible as a personal guide. I steered them away from trusting Jesus own words that he 'is the way and the truth and the life'. How could I have done otherwise - I was believing that the organization was the path to my salvation too. Oh yes, Jesus gets some token mention. But he is clearly taught to be a Mediator to only the annointed ones. Other sheep have no Mediator in Jesus, by watchtower teaching.
Many are preaching the good news that Christ Jesus is the 'way and the truth and the life'. Jehovah's witnesses are teaching that the Watchtower is the pathway to life - if you try and have a personal relationship with Jesus Christ apart from the witness faith - in their eyes you have turned away from the 'truth'.
Since leaving the Watchtower organization, I have had many try and 'witness' to me in their own ways, and highlight the value of Jesus Christ - I think that constitutes preaching the real 'good news'.
Enough said -
Jeff