Are you claiming that there was a time when people didn't chose the easy road? The truth is that people naturally choose what they see as the best route to an objective. I remember in vanilla that when they made it easier to get high ranks in pvp, raiders stopped raiding en masse and started pvping for their gear. I don't know what type of magical world you want to imagine where everyone that plays the game is either a gladiator or an elite raider.
The truth is that the difficulty curve of WoW is designed in such a way that only a very small % of players ever make it to the actual top, so perhaps your problem is that you have a different vision of what 'the top' is than what the developers consider it to be. You have to ask yourself whether your bias in this area is reflective of your own overestimation of your own talent, which results in your condemnation of the game as 'too accessible' even though you yourself have not accessed the elite aspects of the game.