We're also assuming that the Wolverines wanted to warn the Inner Sphere of the dangers of the clans. After the beat down they received and 3 generations of Nicki K dogma in their heads, as well as an idealized Star league, maybe they were just running. When they show up in Drac space they could have been thinking, "let's join up." but then they saw the horrors and thought, "crap Kerensky was right, we're out!"
Why would they even bother to look for SLDF units that remained? Even a brief incursion in the Inner Sphere showed them that A. Kerensky's visions were right. If you were Trish Ebon, would you jump to Terra or deeper into the Sphere? It makes more sense why C* found the Weir but the Outworld and IE tracked them to the "south" of the IS.
It's wishful thinking that the Wolverines would have spent time searching for long lost SLDF brothers and sisters.
Now for conspiracies, who prettied up the grave sites and maintains them on Barbados?