You're just admitting to not playing to your full capacity then. What do you do during a fight? Melee? Cast Ninjutsu? What use could you possibly gain from /NIN? You cast your spells on tanks and mages and the rest you just sit and stare, waiting to reapply those buffs? There's always something you can do. There are fights that will kill you. There are hard fights, where a WHM's focus isn't on hasting, or simply doesn't have time/MP to. There isn't always a second WHM, and a BRD may very well be required. So what are you going to do? Say "Fuck you, I'm a BRD, it's not my job!" or get your head out of your ass and contribute to your party/linkshell?