His notion of making a Haiku concept only by stressing the first line of a waka poem, and giving only meager recognition to renku (a lined verse) kasen(a master poet of classical waka), was thought by some to be causing a great deal of adverse effects on the present day Haiku.
連句（歌仙）にきわめて低い評価しか与えず、発句のみをもって俳句の概念をつくりあげたこと、などは近代俳句に大きな弊害を与えていると考える向きもある。