Sudden transition are suspicious and cation should be applied when switching world views. It does seem like you are jumping to conclusions in your guess: "Whatever your conscious thoughts, if you had a sudden transition I'm guessing that was your subconsious mind thinking something like "Yes, this looks like a good social group to join." This is a very narrow guess which you have not backed up with evidence. I also can not find supporting evidence in my own observations and/or reading. While it is a possibility it still seems likely to be an over simplification.

Knowing that a previous belief system has been falsified(by some of it's foundation being disproven or thrown into doubt) it is perfectly fine to tentatively apply a new system of beliefs to experimental verify there correctness.