rack n pinion front steer ackerman issues...explain...

Let me axe a silly question.. I have an International Scout with its stock Danna 44 front axle. The pitman arm goes forward to a drag link that pulls/pushes the spindle from in front of the axle. The left and right spindles are joined by a tie rod in front of the axle. The tie rod is shorter than the axle (in direct violation of Ackerman principles). I believe most 4X4 IH pickups of the same era had the same front suspension setup. A Scout was never meant as the best handling vehicle in the world, but wouldn't engineering an inherently 'unstable' vehicle be a corporate nightmare? Is there a reason this setup 'works' (albeit not like a Ferrarri)? This is the best picture I have of it at the moment..
Spindle.jpg