But having it used in practical conditions, by companies intended to make money and writing "normal" software (i.e. not things related to formal semantics), is still really newsworthy.
And that's OCaml's appeal IMO: it focuses on things that aren't sexy to academics. Good compiler performances due to careful codegen rather than exotic theories, willingness to be "polluted" by side-effects rather than wrangling monad transformers, eager evaluation to get predictability rather than cute code...
Such that, even though they might be distantly familiar with FP in general, its quite likely that articles on particular FP techniques, FP languages, or applications of FP to a particular problem area can still be useful.
Sometimes, it'll be useful just by reminding you of something you've been too caught up with dealing with what is immediately useful to think much about since school, but which might be more applicable to the problems you have now than the problems you had in programming work closer to the time you were in school.