At the beginning of the masterclass, Professor Pressler congratulates the two pianists for their performance. He talks about Rachmaninov's four-hand writing: in this piece, it seems that the piano II does not develop its virtuosism as usual. By contrast, the composer works on two-piano pieces in different ways, both parts (piano I and piano II) are more balanced.
The tempo meno mosso indicates a softer character, an entertainment purpose. They work on the progressions of dynamics to the pianissimo so that they become more gradual.