I have no idea what he would have to say about this, the film was made in 1941, so he may have even seen it. He did say that aikido should be practiced in a joyfull manner, and he would see the people who were in the clip certainly doing just that. My guess is that he would be as impressed with their skills and abilities as we are
Yes! A joyful demonstration of highly developed skills and abilities--Isn't that what OSensei's Aikido was about?