Thanks for sharing your research findings. Very interesting. I'm confused by it all, too. Here is the opinion of well-known physical trainer Michael Boyle. Even Boyle is against surgical treatment of sports hernia.
Michael Boyle wrote:
My feeling and the feeling of many of many therapist colleagues is that "sports hernia" surgery will be like the lateral release in the patella femoral joint, a surgery that had limited success and thankfully eventually went out of style.
Here's the link to the full article by Michael Boyle