Buddhipriya, even the term "Hindu" NEVER appears in the 4 vedas, Upanishads, Mahabharata, Ramayana and the Puranas. Does that mean we are not Hindus ? Similarly, just because some western unemployed bozos did not think about the term Dharmic Religions, does not mean that it is an invalid term.

Just like Abrahamic Religions is a class of religions, so too are the religions that began in India a logical class of religions. This classification is but natural, and occurred to many scholars independently. The similarity and common origins of these religions merits a separate article on Dharmic Religions.