I love doing Yoga X and look forward to it every week. It always seems to work out any kinks and stiffness I may feel after a week of strength training and general activity. Although arguably, this isn’t “authentic” yoga, I still find it beneficial.
I doubt most of the people who do this program are looking for improved meditation practice and enlightenment. Clearly, Tony Horton has been practicing with very good yoga teachers, and I imagine he gets a great deal out of a steady practice. He frequently mentions throughout the P90X videos that he attributes his youthfulness and athletic abilities to his yoga practice. I just imagine he wanted to keep this particular video as “non-weird” to appeal to the maximum number of people.
One thing I have noticed is that Ardha Matsyendrasana (Half Lord of the Fishes pose) comes pretty early in the sequence. I’m accustomed to doing twists near the end of the practice. I feel like my back isn’t quite ready to twist after spending about 45 minutes of sun salutations, warrior poses and a few balance poses. No matter, I love the twisting variation on Supta Padangusthasana (Reclining Big Toe pose) near the end of the practice.