It was due to Teika's consideration for the bakufu that the work by the great poets Emperor Gotoba and Emperor Juntoku was omitted, as they were in exile following the Jokyu incident.
承久の乱以後、流刑地にあった大歌人後鳥羽天皇と順徳天皇の歌を除外したのは、他ならぬ幕府への配慮である。