Good points. I have always been partial to Dr. John Sailhamer’s thesis on this which is similar. When Moses wrote – even if using some source material – the creation account he was writing to a people leaving Egypt in need of understanding their identify. He described Eden as a physical place that existed and that the people would identify with, just as you have said. For Sailhamer Eden is the Promised land and the children of Israel are returning to Eden though not in its original state. I have several posts that review his arguments but one in particular is fun to think about. When Jacob was returning to the “land” after being away he meets an angel and has to wrestle him to gain entry to that land. That was on the East side of the promised land. Sailhamer sees that angel as those that are set there to guard the entrance to the Garden. Of course, an alternative interpretation is that that event occurred but that is only symbolically represented re-entry into Eden. Part of that series: https://thenaturalhistorian.com/2011/09/27/the-historical-creation-view-of-sailhamer-%E2%80%93-part-3/