I suggest that until one has played the piece in concert, they should refrain from calling Islamey, or any other piece, easy.
Well, Islamey is hard, but there are harder out there. However, Islamey may be one of the toughest popular pieces out there. Personally, I don't even know why it is popular- it's a marathon of dissonance and useless notes. I almost see more point in learning Prokofiev's Tocatta.