IF Cart Revo did more dps than just melee'ing, then yes that's my logic. BB isn't bothersome. It's never been bothersome since the switch to eA, so I don't know why everyone is complaining. BB is just one of the useful skills a LK has to level/kill shit. Like I said, I know it's personal preference, but playing badly because you like playing badly doesn't mean you're playing well.
And yea I prefer having a shield and spear as well but a two handed LK can level efficiently with a two hand sword as well. As long as they know what they're doing.