This may be difficult to understand, but :
- Relaxing and having fun doesn't imply facerolling content half-asleep. In fact, being bored actually don't tend to relax and be fun.
- You have 99 % of the game to faceroll, why should even half of the endgame be facerollable too ?
Actually, it was very successful in TBC, and the only problem at the beginning of Cata was that they catered to the brainless for two years and hence lowered expectation, increased childish feeling of entitlement from bads, and destroyed the average skill level. So again a problem about catering to the idiots.
People unable to bear the idea of anything else than facerolling sounds far more debilitating.Why is it frightening? Do you frighten so easily? That sounds debilitating.