I do not buy the scale argument. First, more faithful means more priests (assuming a healthy church teaching). Also, did number of catholics explode after WWI? What about a family as a MAIN venue of passing the Faith? Was it defunct too?
We obviously cannot judge peoples intentions and thoughts, so nobody will know for sure but we still can analyze the exact commentary to find some clues. I did watch a few segments of this video and it struck me like very strong, how emphasis is put on understanding. Also, the commentary completely overshadowed the Consecration. In fact, I plan to watch it in its entitreity - not only to find out details like that, but also out of curiosity and my interest how the liturgy looked back then, which I have no doubts that it is very pious.