One nit to pick: the part just past the 2:30 mark where it says he created a felt plectrum because the thumb was technically limiting. I don't believe this is true. In a book or magazine I read years ago, Monk said that one day his thumb went numb, it just wouldn't work, so he developed a thumb pick which he called Monk's Bionic Thumb, and he switched to that. IIRC at one time he may have even offered these for sale.
The story seems to have gotten confused because I've found reference online to Monk's Bionic Thumb being a felt plectrum. That makes no sense. Some interviewer must have misunderstood.
If you have the patience to look for glimpses of him in this video, you can see that he's playing a J with a thumb pick. More obvious in the second song (Windy), after the 5 minute mark. Windy was released in 1967, this was recorded in January 1968, and Wes died in June 1968.