I mean, it's cool 2013 is there, the last non-hybrid era game that's so good making 2012, 11, and 10 almost obsolete.
Since all the games got better and better, it's, at least practically, not so bad.
However, in terms of game preservation it's sad. Why not leave it for this one guy who cares about 2015? Does it cost them money to have it listed?