Your first paragraph doesn't contradict what I said that much to me, since "one or two" includes both religions that were born over two millennia ago and ones that started between one and two millennia ago. Mormonism is a minor offshoot of Christianity. The dominance of the religions that you mentioned also began more than one millennium ago. I will grant that Sikhism is a newer major religion, but its level of influence just doesn't clear the bar for "much change in religion" for me quite yet.
It seems to me that the dissonance just boils down to semantics. The developments that you mentioned just didn't clear my bar for that "much change." The names themselves of temple Judaism and Rabbinic Judaism root them both in the same traditions, and the Reformation and enlightenment in general are just developments on the same core religious beliefs. Druidism, witchcraft, and Universalism just aren't that consequential in the world.
If I was trying to make a real point, it would have been that the baseline things that, as you said, stayed the same are more significant than the changes that did occur.