Even without WM, a BRD can still do fairly good number assuming they play their job well. If they alone are prolonging the run by 45 minutes, then you'd also need to look at the other dps, or consider the fact that even WM it would not have helped, because you will actually do less damage in WM if you don't use the new abilties or otherwise just spam heavy shot. If they're really doing the latter (spamming heavy shot), then they should've really been booted out on that basis. I'm not the sort of person that'll carry someone who can't even be arsed to do their role effectively.