I agree with the responses here - I don't think the term works unless it is explained. Holistic generally doesn't refer to the number of similar elements in one thing (width); rather, it refers to the number of disparate elements in one thing (depth).
If I were a martial artist who knew Kalari ppayattu, Aikido, Bushido, Tae Kwon Do, Karate, Muay Thai, and Kung Fu, that doesn't make me holistic. If I knew only one form, but I brought into my practice breathing, meditation, anatomy, kinesiology, music, nutrition, written practices, painting, yoga, language, and service, that would be a holistic practice.
I hope it's helpful.