YES...There is non-functional training, which is, the other training styles. I use and combine all types of training when I train people. There are plenty of clients at my gym that can easily workout by themselves and have for a while who are in great shape. But still approach us asking for variety, something different. People don't want to do squats and deadlifts all day, thats boring for them. Your average middle aged overweight girl doesn't get excited about working out like we do. Combining this type of training with other keeps things interesting for clients. I've seen the idoit trainers who approach everyone trying to confuse someone so they sound smarter. It is a training style. Research it.