I remember the articles about how Holy Spirit is used to pick the elders. How the GB is chosen and inspired by Holy Spirit. How they made changes with the Holy Spirit.
All this in effect, made them infallible. Because when you have God using the Holy Spirit to "illuminate" the scriptures to the GB to make these changes, you couldn't be making mistakes or be wrong. Hence their use of "new light" as an explanation and all of the mumbo jumbo that went into using the illustration of how when the sun comes up, gradually you will see more detail and so the understanding becomes much clearer etc. Then you had the "tacking" of the ship explanation. All of this piling on explaining their flip flopping, means that not everyone was buying it so they had come up with something else. It also put into the followers minds, that nothing is clear cut with the workings of Holy Spirit and so they should leave it to the GB.
Then the article came out about them not being infallible and that they were "spirit directed" instead of Holy spirit inspiring them. Which to me means the GB is not going to accept responsibility for past "mistakes" or present ones. They can wash their hands of it all. And the regular JW's love that the leaders are being "so humble" and are just like them.