If the Witlesses accepted the over lapping generation, which heaved the Great Tribulation another 20 to 40 years into the future, the 1975 video will be yawned at. Not being thinkers, they still think that the end is just around the corner even though the Gibbering Body moved the goal posts.
The Witlesses really don't believe the end is so close. If they did they would be out day and night warning the world and not standing by their carts sipping lattes in the shade a half a block away from the carts as they rack up the hours in field service.
Sour Grapes