First of all sorry for the long post in English, but for me the German language is very difficult.
As I said before, the path, at least at the rolling stock level, seems incomplete (but I still have the hope that something could be changed for the better).
However, come to think of it, in the TSW the paths are necessary if you want to buy a LOCO DLC (like the BR 182 which is connected to the RT). So, if one decides not to buy Hamburg-Lübeck and then, in a few months, DTG decides to connect a DB 103, a DB 111, a DB 140 to this path (obviously these are just examples)?
I don't know if I managed to convey the idea ...