If a bard doesn't sing they are bad, no excusing it.

Tanks don't always have to use their cooldowns, healers don't have to stoneskin, dps doesn't have to their cooldowns to clear content. If they aren't they are lazy, stop trying to make excuses for laziness. "We dont have to" is just lame. I feel like most people enter CT raids as brds so they can pretty much sleep walk through it.