I love that you listened to your body and avoided streessing it. It's key to maintain great fitness.
I really commend your wife for learning so hard. Trust me she is a quick learner (lol)... My younger sister took almost 3 years to do half of what she is doing now as those image potrayed.
Great that you are doing it together. I guess it further creates a biding force of encouragement that keeps both of you going.
RE: Yoga: Recovery from Running / Tuesday Practice with my Wife