This remix is definately one of the best remixes i've heard. It used to be my favorite remix for a long time (until i listened to it over and over until it got old). I don't think that there was a problem with the similarities to the original song. If there's nothing wrong with the main melody, why change it? It doesn't sound like a midi of the original and besides, bLiNd wouldn't do that. It would be co cheap.
This is one of those songs that creates a mood and accomplishes an ambience and feel that most songs don't.