I don't find it to be offensive, but I agree, it definitely is outdated. I think it's time we finally upgrade to Age.
I have seen that some people are using terms such as "Now Age." I also agree that the term "New Age" originally referred to a spiritual movement that began several decades ago. However, because a central tenet -- if not
the central tenet -- of New Age is transcendence, then the term "New Age" continually transcends, and it incorporates and means whatever is current. So it's really an umbrella mega-belief system or mega-movement that welcomes and allows for all positive beliefs of spirituality and human consciousness, with the view toward progress, expansion, growth, transcendence. I'm not offended at all by the term "New Age," mainly because I understand its original and general meaning, intention, and purpose. Like any terminology, it gets misused, misrepresented, and ridiculed. But as with anything, especially spirituality, people need to use their discernment. ~ Peace, Being