I think you got it all wrong of what it means to play a BM. BM's are definitely weaker in terms of base skills compared to Merc or WH and mobility wise as well. Heck, a lot of other classes have better mobbing abilities compared to BM's. However, I find it is a unique class to play as not many people play it compared to others and besides, if you're playing BM in hopes of outdoing other classes it is definitely the wrong class for you.