Yes, Diaz’ account is nearly the entire source for British black propaganda; British history takes Diaz’ evidently wild exaggerations and portrays them as typical of Spanish cruelty. Diaz’ book is nearly synonymous with “the Black Legend.”
It is obvious from your post that you have not actually read the Diaz account.
Read it and stop having mid and late 20th century socialist and Marixst revisionist historians be the only source for your opinions.
Out.