I'm amazed that she admitted that the WTS was wrong about 1975. The standard alibi around here is that "some of the brothers were too far ahead in their desire for this system to end". They ignore the financial devastation that so many families experienced that will last for many more years.
That JW support system is pretty thin really. When my kids started bailing out of the "truth", my wife felt that I was responsible (and I was). She decided to leave me. Turned out that all that "support" was short term and evaporated rather quickly. She came back rather quickly and has no more illusions about the support system.