Yes, but the point being is that if there was a civ at Richat that was a large trading center, there would have been artifacts to be found at Richat that would speak to that. Broken pottery, buildings, something. It doesnt matter who they were trading with. But there is nothing there except prehistoric stone tool artifacts.
So you're being asked to believe that artifacts that would predate Atlantis somehow survived in the same spot where there is zero trace of Atlantean civilization that would supposedly follow after.
Its pure hopium.