Bliz didn't make heroic scenarios to satisfy everyone, its there for people who enjoy a challenge and yes, it is a challenge even if you wrecked it in 13 minutes. Its certainly not as easy as the regular scenario and the rewards are better. If you don't like panda's then don't play them. If you dont like alliance then dont play alliance. If you don't like fishing don't do it but don't poo-poo people who do enjoy that content.
If you don't like it then don't do it and leave those who do like it alone.