How many melee have I seen sit on the LB2/3 until they think its going to be enough to kill the boss (or just plain ignored that it exists) when they could have used it at any safe point before then rather than use it and complain they died because they were animation locked (and trust me you get those parties every once in a while where you probably could get 2+ LB's off)... Anyone can misuse the LB doesnt make it right but making it seem like you feel this is a bard or machinist issue isnt going to change the fact your going to occasionally get one of THOSE players regardless of class or LB type so brush it off and move on