Once OBM is depreciated in June 2025 , the OBM segments will no longer be accessible.

Why has this not been considered by Microsoft in terms of the volume of work required for users of the system to now have to re-create a large number of Segments in RTM?  

If we have multiple number of OBM segments, it will be difficult for us to rebuild all of them in RTM after OBM deprecation. So any method to convert OBM to RTM will assist here.