To be honest I believe the issue is not with the book, but with the world, which have eroded and blemished the concepts of faith, self love and forgiveness, endurance, etc. So many books, movies, commercials, "self-help-professionals"(throws up in mouth a bit), ponzi schemes, etc. have chewed and spit out these themes so many times that they became stale.

Also I must add, Coelho was ahead in this as well, because in the book he actually subtly picks at the mythos of "will it to make it true", inclining to question these kinds of this.