Some respondents believed that, although reporting on stewardship items might be warranted, a separate manner of reporting might not.
According to some respondents, reporting stewardship items and including a separate manner of reporting is always warranted. 
mnli hypothesis: According to some respondents, reporting stewardship items and including a separate manner of reporting is always warranted.  premise: Some respondents believed that, although reporting on stewardship items might be warranted, a separate manner of reporting might not.