Komeito's parent organization, the lay-Buddhist group Soka Gakkai, put the blame for the defeat on "the single-constituency system" and an "ineffective organizational strategy."

Also:

...there were those in the Soka Gakkai who opposed Komeito's support for the Self-Defense Force mission to Iraq and other security issues, believing Komeito had strayed too far from its slogan of "Peace and Welfare," set when the party was founded.

Organizational blunders.... Promising to follow noble slogans but turning around and betraying those same noble words.... Yeah, that's the Soka I know.