Only in that MM had high, if not sole, contributive value to the Ranged DPS role. The other specializations did not. Perhaps it can be explained from another angle: Temporarily remove MM and it’s basic skills from the game. What would remain?
What would BM and SV each contribute to the class in terms of DPS modality? How would their individual contributions to the class differ with the removal of MM skills?
This is where I’m coming from.