Logically, there are Wolverine descendants still living in the Periphery and Deep Periphery, otherwise there would be no fresh flowers and apparently the site was changed since Nicholas Kerensky left.
I doubt these descendants are more than small colonies and perhaps pirates and bandits though, even if they keep up a tradition of honoring their ancestors, or something like that.
I'll note that the information collected by the ComStar may not have found its way to Focht or other ComStar leaders.
If the matter was pursued further, it could explain the Jihad Secrets Wolverine story:
Like, the ComStar follows trails a bit, perhaps not right away but within 20-30 years, finds clues, perhaps some data files from Wolverine bases or survivors or whatever, and together with data brought from the Operation Bulldog and Phelan Kell's writings, tells them the rough story of the Wolverines. Then, during the Jihad, this information is used to manufacture the journal for Stone so that he can convince the Ghost Bears to join the Coalition.
(The Wolverine Journal is likely a fake because the dates given don't match dates in Betrayal of Ideals, and the novels are arguably highest order of canon since they tell things as they were (of course, an error on part of the Journal's writer in-universe could be possible but seems somewhat unlikely). But it does have a lot realistic information, so it may well be based on the real events and data, and such things might have been found from Barbados or wherever Wolverine-descendants might be living.)
The Wolverine-WOB connection sounds too incredible to me and i regard it as a hoax in-universe. But i find my theory somewhat plausible... or at least slightly more believable.