A thought occurred to me reading The Buddha In Me, The Buddha In You, that perhaps I need to read up on Nichiren before I compare it to the SGI teachings. That brings up another question. Should I trust the SGI translation of Nichiren's Daishonin? I can't find another translation online.
And I could reread the Lotus Sutra.
"The teachings are endless, I seek to master them" is a Bodhisattva vow line, which I can't find a TBC version of at the moment.
My own opinion is that reducing Buddhism to chanting the name of the Lotus Sutra, well that just doesn't feel like the best practice. I think ethics, meditation and wisdom are very important. Chanting and faith are lovely too.
I am interested in a way about it because once on a solitary retreat, I had the thought that I would not get enlightened in the current circumstances of my life, which is basically Mappo, a basis for the Nichiren Buddhism. But just because I thought it doesn't mean it's true. And Nichiren meditated for 20 years. I can't believe that he got nothing more out of that than a mantra.
Pure Land Buddhism, which is not one thing really, is the most popular sect of Buddhism, mostly concentrated in Japan and China.