Trappings of the warrior has a mistake?

not about the actual ability really but at the end of the martial skill resonant power they give an example which i think might be wrong.

They say "(for example, a 12th-level occultist with 12 points of mental focus invested among the associated implements would be treated as having a base attack bonus of +11, with iterative attacks at a base attack bonus of +6 and +1)" but should this actually add up to +12 BAB, +9 for levels then +3 from martial skill = +12 right!?