Well played! You played this movement very well and the ensemble was a quality group. You are referring to 6:15 to 6:40 I assume. Your interpretation here works very well for me for the reasons that you mention. It is very common (including for professors) to develop what I call a "biased ear". I'm guilty of that myself. When I was young (maybe 10 years old) I had a recording of Bach orchestral suite No. 2. This is over 50 years ago. The way ensembles and orchestras perform Bach today is vastly different from how they did 60 years ago, primarily due to the rise of the Historically Informed Performance (HIP) movement.The performance I listened to as a child of the overture (a French overture with a fugal section that still gives me goose bumps to this day) was slow, drawn out, serious. It was so moving to me. Nowadays it is played quicker, lighter with portato articulation. To this day I cannot find a performance of this work that I like due to my Biased ear.I wouldn't worry about your professors preferences too much. As long as your performance choices are musically sound which I believe they are in this case. Again, well done!
Again thank you very much! Yes, I know what you mean. Once you have a certain idea of a piece, you become biased. I also know this with recordings. Funnily enough, I had that with a recording of Brahms' Piano Concerto. I heard it for the first time with Glenn Gould and then listened to it a lot. It's a very special but also very fascinating interpretation. And it took me a long time to understand that it can be just as fascinating when played differently. I think that's a very important process. Recognizing different truths and learning something from each of them.