I think not I'd say it was rather like the GunBoa tSmith decision and like that one ,rectified when Sam met him again.
He was neither the first nor the last of his kind. There have been several guys with similar careers and records at different sizes in different eras.
Flynn lost his last 8 out of 9 fights. Not particularly strange, except the sole win was against a very good fighter in Tiger Flowers, who would not lose again, until he fought Harry Greb! From December 1915 to July 1921 he won just 7 out of 30 fights.Those 7 fights included a win over all time Great Jack Dempsey! From July 08 to February 10 he won just 5 out of 12 fights. This series of fights included a win over All time Great Sam Langford!
But Flynn was never elite, he just fought everybody and ducked nobody. He had the kind of style that when you're not prepared for challenge, he'd outwork you. He was very limited, but he knew what he was doing.
Most of the press reported that Flynn had won. He seems to have just swarmed Langford and denied him punching room. https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=LAH19100209.2.127.16.1&e=-------en--20--1 https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=SU19100209.2.119&e=-------en--20--1
I've heard people say he was Italian. I'll take their word for it. Chiariglione is generally an Italian or French surname. Originally French but just as common in Italy. Andrew is Scottish, common in England and throughout the Anglophone world. & "Jim Flynn" is a typical anglicized 'Irish' name. Which all points towards him being a plain old typical American.