Aetheling actually means 'throneworthy' and was the title given to the most legitimate heir; but a legitimate blood claim was only part of the issue. The crown would go to the claimant who could muster most support amongst the 'great and the good' of England. In January 1066, Edgar Aetheling was a minor, and with the wolves breathing at the door, the English magnates could not afford to risk the kingdom in such inexperienced hands. So they turned to Harold, the obvious power behind the throne, who, as we have seen, had prepared his ground well.
Some counterexamples are: Andrzej Panufnik (10), Peter Maxwell Davies (10), Hans Werner Henze (10), Eduard Tubin (10), William Schuman (10; his first two were withdrawn), Alun Hoddinott (10), David Diamond (11), Joachim Raff (11), Edmund Rubbra (11), Robert Simpson (11), Philip Glass (11, as of 2017), Heitor Villa-Lobos (12, although Symphony No. 5 was lost), Darius Milhaud and Alexander Moyzes (12 each), Vagn Holmboe (13), Roy Harris (13), Gloria Coates (15), Dmitri Shostakovich (15), Kalevi Aho (16, as of 2016), Rued Langgaard (16), Henry Cowell (17), Allan Pettersson (17), Lev Knipper (20), Jānis Ivanovs (21), Mieczysław Weinberg (22), Nikolai Myaskovsky (27), Havergal Brian (32), Alan Hovhaness (67), Derek Bourgeois (114, as of 2016), and Leif Segerstam (309, as of 2016).