I got talking to my fellow elder Richard about this and we ended up on a fascinating discussion centering on who walked with Adam and Eve in the garden. Was it God the Father or God the Son?
Richard suggested that throughout the OT whenever God appeared (the theophanies) it was Jesus, the mediator of our faith (not God the Father) . This is how he reconciles the numerous statements that no-one has ever seen God face to face.
Jesus in the garden of Eden is brand new thinking for me and am not sure what to make of it. If the age to come is the first time God the Father will walk with Mankind, this position certainly makes the new heavens & earth a much brighter prospect.
In one sense I think this is , at best, a secondary issue, but it is an appealing idea. If you have any thoughts on this please do post a comment!