Malvinas, I would tend to disagree with you, as evidenced by the fact that JWs readily accept new ideas which are integrated into the existing framework. All it would take is phrasing it in such a way that it works with the other doctrines. Because there is mind control, people already think the doctrinal changes were there to begin with- the response to the FDS new light was- I thought of this myself independently. Somehow by the time a change is implemented so many seeds have been planted that no one notices it as a doctrinal about face.
Imagine you are sitting in large District Convention in a stadium with 10,000 other people. Who all begin to line up, Babies first. You might look around hoping to catchsomeones eye but everyone has that stupor or deluded smile. The same way you might occasionally look around to see if anyone registers a blatant idiotic thing someone says in a talk.
Why would JWs need to commit mass suicde- It could be the way Jim Jones said torture was imminent. Or- get resurrected immeadiately. Its JHVHs merciful arrangement that everyone not endure the tribulation- quote scripture- reinterpret revelation- some bible math to indicate the time of sleep required before the Paradise will come- JWs may be taught now suicide is bad- but they dont really believe death is a big deal- similar to Jones- it is just a sleep, and one from which JHVH will wake you up from in your most perfect and youthful form. Actually its suprising more DONT commmit suicide. No one wants to grow old in this wicked system of things!
The main difference is- The WTBTS has an enormous amount to lose- with a few holding the power- there is not a single man calling the shots- they have an interest in keeping it moving and I cant imagine a moment where they might be willing to put an end to it.
If they did, I have no doubt that everyone would line up- why not- they already have given up everything in this life- work, family, friends, they are no part of the world. All the Society has to say is that the preaching work is over. Compare the mass suicide to getting on Noahs ark. Done.