I may be alone in this, but this is my opinion..... an opinion that has sustained since Logos 1.6....
I believe that the Word of God is living and active.., don't we all? The times I have in the Word are supernaturally special. As I study, I believe the Holy Spirit gives me insight, (again, don't we all?). These profound insights (for me) are documented and expounded upon in my Logos notes. My Logos notes document supremely special moments I have with the Lord.
Therefore, it is REALLY important that I don't lose documentation of those moments every time Logo's does an upgrade. An "import notes" function is essential for me...., and I imagine for others as well.