You wouldn’t toss out all the punctuation in a book as “junk ABC” now, would you? Punctuation has a function.
Its summer of dominance after neo-Darwinism arose and conquered every field of biology led to an autumn of colorful just-so stories, and now a Narnian rule.
They propose the term “biological role” instead. Thus, presumably, “the function of teeth is chewing” becomes “the biological role of teeth is chewing.”
I would argue that a chronology of exactly what was predicted when is not dispositive as to whether a positive argument can be made.
Functionality for junk DNA is prevalent, and was successfully predicted by intelligent design.