I was really surprised to even see them come out with a 6th movie this year. 1-3 are good instructional videos for learning, 4 is OK, 5 was reaching pretty hard (pin and wiggle so you don't get stuck, or if you do you are augured in to where you can't get it out yourself). I bought 6 just because I like to see that type of riding footage. Didn't expect to see much "schooling."
You can only learn so much from watching a video. After that it is up to you to get out and practice. Until you are comfortable with the basics, you will not get better. I wonder if Brett Rasmussen feels the same way? No commentary from him in 5 or 6, just some riding footage.
One thing I'm surprised they haven't talked about much in the series is how much of a mental game it is to become a better rider. After I got over the mentality of "I can't do that" and started thinking "I bet I CAN do that," things really started changing for me. I hear people say "I can't" all the time and won't every try anything new. The sleds we have these days are amazing. Just need to have confidence in them and your abilities. Now I'm not talking about everybody trying things as extreme as climbing a chute or taking off on a 45 degree slope sideways through the trees. Just things like when there is an open area on a hill with an open runout, try a downhill u-turn 10 times in a row and see how comfortable you are with it. If your sled gets loose or you get stuck, no negative consequences.