I see it that way as well. The basic "new age" idea is that the traditional patterns of spirituality and religion no longer fit and we need to re-evaluate them
Of course with a general notion like that we see all sorts of things - I certainly did in the 1960's. The plays/movies "God Spell" and "Jesus Christ Superstar" are what I'd call "new age" approaches to Jesus and Christianity.
When I was young, New Age was starting to become more main stream. Back then it was sort of the fulfillment of Christianity, in the sense of living the way of Jesus; love generation, by learning to also love your spiritual neighbors. It was the opposite of a clannish religious war. It meant being open to other forms of spirituality. It was not so much a replacement of being a Christian, but fulfilling your Christian values, in the real world via interacting and learning about your spiritual neighbors.
Our parents were from the Golden Generation, who lived through the Great Depression and WWII. When the men were at war, the women stay behind and also kept the country and its manufacturing going; Rosie the Riveter. Men were men and hardened by war and women were women and were finally able to start their families after the war. We were at peace in a country that saw no combat on its soil. Both parents were happy to be alive and both were like disciplines soldiers, with that happy endurance for their church, family and country. The children had it really good, due to a strong nuclear family, the growing post war economy, and the visions of a glorious future in space and beyond; first man on the moon. It was from this platform that the baby boomers, where I lived, wanted to change the world, with the love they had learned. Ask not what your country can do for you, but asl what you can do for your county; President JFK.
An analogy for New Age, was like going to college to improve your mind and learn skills. Once you graduate, there are a large variety of jobs that can use your knowledge and skills and your ability learn and adapt on the job. You are still proudly connected to your Alma Mater, but you are also now an adult in the real world, with your background having made you ready. You did not wish to be a college student for life, but rather it was time to apply your spiritual skills and learn and adapt in the real world. The drugs like marijuana, mushrooms, cactus buttons, hashish, opium, cocaine, all came from Indigenous and Hindu spirituality; to help see and hear God. Big Pharmacy was also doping up mothers; uppers for her busy day and downers to help her sleep at night. That also became part of the blend; black beauties and reds.
The intent was originally evolutionary, via a more open spiritual sense; collect real data with mind altering drugs. But after the Viet Nam War ended and the Love Generation gave up their sandals and jeans, and started to wear leisure and business suits; Jimmy Carter and Ronald Reagan, it became more about making money; New Age businesses, and loss of spirituality all the way to Atheism. I am not sure if one can reverse engineer that time, by starting at the end; Atheism, and then finding your way home. It was a unique time in history.
I was 13 and just Confirmed as a Catholic, the year of Woodstock. My Priest said it was OK to explore other religions. This was mostly Eastern; Hinduism and Buddhism and Indigenous American. We learned love nature from Indigenous Nature Spirituality. The Indigenous American were the original conservationists. I had my strong Catholic background, I was of good nature and character, and I was ready to explore life. That time in history made this easy, even for the young Priests to give you that blessing. Today it is different, since that solid foundation for children was savaged by Liberalism, Atheism and the Welfare State. These were not much of a problem, until the hippies lost their faith, due to excessive partying and then selling out to Government and Corporate America to create the mess we have today; hippies became yuppies. I am sort of a hold out and throw back. Happy 4th of July.