you realize that accessible don't means easy? or casual? worst it don't even make your point valable... it say, people that have handicap can enjoy the game!
god you want the game to be hard that only 3% of the community will complet the challenge here? like Naxx 60, because WoW have already did this only giving content for hardcore... and they have themself change them way... maybe because they have understand that was idiot to use money and time to only care for 5% of the community!

i will be cruel...Even the pvp community have more people into it. yoshida have said they want to touch 15% of the community with the pvp