In my experience, "New Light" tm is more like them talking about this house:
and saying "This house is blue!" to thunderous applause. The followers refuse to even glance at the house for fear they may show lack of faith in the Governing Body and just go by what they were told the color of the house is. Then they remark "Oh, I'm so glad the 'wise slave' told us the house is blue. That was the best convention ever. It was so faith-strengthening and spiritually-energizing. I'm going to auxiliary pioneer this month and tell everybody about how blue the house is."
Then, a few years later, still talking about this house,
they never make mention to having ever said the house was blue and confidently print a scholarly article - chock full of some-names-have-been-changed experiences and excerpts from obscure books by house experts, entitled "This house is green!" and people all make grand comments how the 'faithful slave' has given us this spiritual banquet through the pages of the Watchtower - God's mouthpiece.
A few years later, when several people have left because they discovered the house and what color is really is, there's a scathing "special talk" given all over the country about loyalty to "Jehovah" and how only his enlightened people know this house:
is yellow. A special Awake! is printed in mass quantities and a huge campaign is encouraged. Witnesses take vacation time off from work to tell everyone in the community about the yellowness of the house.