Nichiren versus the Nichiren Shu priest Ryuei

First some background:

https://www.facebook.com/note.php?note_id=241714111435

The Nichiren Shu priest Ryuei advocates the Chinese Hua-T'ou [Zen] method as useful for attaining enlightenment:

http://fraughtwithperil.com/ryuei/2011/02/27/odaimoku-as-a-hua-tou-source-of-words/

Nichiren's on Zen:

"Zen is the teaching of devils."