The functionality of Descript is potentially great for expert polyglot language learners. Expert language learns parse audio (splitting videos and audio into words, phrases and sentences) and use them to create flashcards in spaced-repetition software (such as Anki). This software optimises learning so you always focus most on the things you don't know. Your tools are almost perfect for this functionality. To be used in this way you want to add a few minutes of spoken audio in a foreign language and parse it into dozens of mp3 files. If you optimised it for this (make it easier to rename chunks on creation) and then bulk mp3 export this could be a game changer