I don't understand where the issue is. Enigma being "solved" was one of the reasons often cited as a contributing factor to fall of the Nazis. However little significance it has to you personally.
Historical data -if aggregated- could become a valuable contribution to a research project -or a project of different nature- in the future. Knowing more about the past can't be a bad thing in my book.

Does it add anything?
Actually it does: It adds to the exact account of events that happened on that day- in this case a troop/ship movement and the way it's crew communicated their intention of reacting to a new situation.

Maybe I am missing your point.