No is not, flex is not supposed to be facerolled and blizzard stated it months ago, flex is for organized groups.BLZ: Please reconsider your definition about FLEX which is made for FACEROLLER LFR players.
Yesterday we tried that flex with 10 players, 5 from the guild and 5 pugs, 3 of them without experience siegecrafter was a faceroll, klaxxi only require tank swap and call the targets, in garrosh we wipe 4 times, the damage on the tank is a joke, the damage in the realm is a joke, the damage from the empowered lolstorm is a joke, the only dangerous thing is the mind control.