Well, I think according to the numbers the movie must have had fans, but I understand what you mean. For me it was to much of a clichee with all those paralells between american (or european - its not like they did it better anywhere) settlement history and the movie. But I kind of liked the music I have to admit.I think some object because of its use in that annoying movie "Avatar"
Buy who knows
Anyway, it is an interesting explanation, but for people thinking that way - I think that is a little bit small minded - because in that manner one could be against nearly anything, because for most stuff there has been something annoying already (in my case my favorite example: Lord of the Rings with its unnecessary changes, which reduced otherwise great work without need). I think people should be a little bit more tolerant with propable weaknesses especially when the "product" isn´t even there yet to check how much the thing which disturbs effects the fun.