Great post! I like it that you emphasized on the usage of subtitles as a way of inclusive design. I think it can be helpful for students who have hearing problems and students in general as well because subtitles could help students take in more information then only listening to the contents. The subtitles could also be used after watching the video and serve as a reviewing material.

I wonder whether there should be more types of UDL for other students with various needs such as students with visual impairments or students who have problems reading? Would it be helpful to add some additional audios to describe certain images for video contents that are not covered in the speaking of the video?