A big part of that story is that Titan may have looked like Europa with organics for a large part of it's history.
About a billion or so years ago, something happened, and the deep subsurface ocean shrank and the ice shell thickened. That big change may have cause icy mountains to uplift basins to drop, and labyrinth organic layers to uplift. The entire Adiri area may be a big uplifted area. With mountains on top of that too.