A nice thought Val but I would assume that the fact that it's a charity single isn't the main or even one of the factors they take into account when deciding on playlist status. First and foremost it has to be a catchy and therefore "radio friendly" song, and Remembrance Day isn't really that type of track. To be fair, they have shown in the past that when MK does release a catchy track they will back him, look at What It Is, Sailing to Philadelphia and This Is us, all of them got lots of play on Radio 2.