Some yoga students have a good amount of yoga knowledge and they follow a yogic lifestyle but they are not so advance in asana practice. On the other hand some students have a great physical ability for the asana practice but may not have complete understanding of yoga as a awhole. Both the paths leads us to same understanding of yoga. So if you show a deeper dedication and devotion to learn yoga as a whole, the training may be suitable for you.
Yes this course is more then the physical flexibility. Yoga is much more than physical asana practice.