Hi Lyle, being older, working sometimes with older beginners, and believing that fear and pain create bad body habits, I am a big fan of Ellis Amdur's approach per his DVD "Ukemi From The Ground Up" because it builds on a simple low impact approach with repetitions of things that can be done in a very relaxed way. The very tiny exposure I've had to Systema has also reinforced my focus on relaxation and simple movement.
Don't get me wrong, I don't just start people off flipping through the air. I haven't seen the video you mentioned but I am careful to be sure a student can safely roll from a seated position before standing them up and eventually sending them through the air. I agree older students face different challenges when beginning their training and each student is an individual and has to be taught on their current level. On occasion though there are those that just catch it and move quickly through the stages.