I posted that last night as I listed to the BBC late night news broadcast. There wasn't much room for confusion in the way this was reported then. "Made in Rome by three Italians" is a verbatim quote, and it continued on by explicitly stating that British intelligence had wilfully functioned as an echo chamber to hide the source and allow DC to claim they were not alone in believing the documents were real.

Not a trace of that anywhere, even though the web article doesn't invalidate the broadcast (I didn't hear the reporter say Sismi was responsible).