Haikyuu Unpopular Opinions #1 | Haikyuu Discussions | Haikyuu Fanboy. The first episode of Haikyuu Unpopular opinion is out and I know that this episode is not the most refined work of art but it is not bad according to me. The opinion tackled are: 1. Oikawa is trash 2. Haikyuu is trash 3. Haikyuu S4 part 2 art style is better than old artstyle.