You can certainly get a lot of semantic information crammed into a short piece of text, but an interview gives you the cadence of someone's voice, which may be important in its own way. Audio can be very dense, but in ways that aren't strictly linguistic. People also tend to express themselves differently in conversation than they do on the page, and listening to an interview with an interesting person may actually tell you more about them than their writing, or even a cleaned-up version rendered in text.

Like, which conveys the situation better, "Oh the humanity" or the audio as recorded (you can in this case ignore the video, which was recorded separately)? https://youtu.be/pUVDmXvXcbk?t=39