Performance, performance, performance... That's all you hear about in this thread!
Now I really don't see why you would need to master really deep dives to teach a beginner freediving course. Especially when the goal is for students to be able to freedive with their buddies in the 10 to 20m range, spending all day looking at fish... Anyone can have fun freediving, but it doesn't mean that they will all get noseclips and fluid goggles, and follow a rope to the depth! Mike's right, look at the "fun" side of freediving too, which this beginner course targets. (not that performance freediving is not fun, but it's definitely not mainstream...)
If you can demonstrate an instructor level kicking style, equalisation, handling of safety, and all the components we use when freediving, are a good teacher/coach, are able to manage a group and manage all risks, and teach responsible diving including environmental messages, then to me you are a better instructor to initiate a complete beginner than someone diving deeper, but too focused on performance to be able to transmit his passion...
Just look at the difference between the organisations to understand that their goals, so their means, are not comparable: AIDA promotes competitions and records, SSI promotes recreational diving! You know, diving with fish, sharks, turtles, going in and out of caves, etc.