SI Database each year gets updated and drops legends

So I just wanted to bring this up for discussion as I'm bewildered somehow. so just running through the database in FM09 and comparing it to FM15 you know because even though I include all players from a specific nation in start of game these players or non-players that i would like to have a look at have been removed. Problem is with SI really as the community has done a fantastic job. Unique IDs cant b changed so there are hundreds if not thousands of unassigned Cut-Out pictures because the people no longer exist in the game so why is SI removing people?

Looking for the likes of Romario, Bebeto, Lillian Thuram, Desailly, Paul Winsper(fitness coach)Pele

most of the cut-out faces are there for these legends made by sortitsi community and their unique ids in the megapack are the same as when they used to b in the previous games. i would like to know if there is a database that includes all the cut-outs here? And whats with not being able to change the unique IDs as long as it doesnt clash with any other ID also. And by the way in real life Bebeto and romario are working in football still can someone explain to me why the restricted database editor when u canne change unique IDs like before? and why database is losing legends each year even if in real life they are on hiatus?