They replaced Glorfindel with another character that makes just as much sense and made it so the movie was not even more male dominate then it already was. It also improved the romantic relationship considerably. In some ways its actually an improvement from the books.
Overall I think that is just complaining on an incredibly high level. Sure, lets make a new set of Lord of the Rings movies every 5 years, I'm in. But given the history of Fantasy in Movies, LotR pulls of the nearly impossible.