It is shorter, but only by 19 removed words and 6 removed answers. Compare for yourself:
https://www.nytimes.com/games/wordle/main.bd4cb59c.js
https://web.archive.org/web/20220210034340id_/https://www.po...
https://www.nytimes.com/games/wordle/main.bd4cb59c.js
https://web.archive.org/web/20220210034340id_/https://www.po...
So the 10638 words are the set of all possible guesses minus the set of all the solutions.
I think OP is correct about them removing ~2k of the possible words