Had bungie designed the previous raids with similar difficulty I think this would not be a problem. Most players have not had to perform under these conditions. With less than 20% of the player base completing the raid (possibly less than 10%) it's quite clear this is not "easy" for the average player and it shouldn't be. This is supposed to be the hardest content. However, does bungie really want 80% of their players struggling to complete content? Do they want to risk losing a large chunk of paying customers? Time will tell. Its clear the TTK raid has exposed the learning curve of the masses.