Well on one hand the cultures of most of the races in the hobbit/LoTR very much reflected the times in which the books were written: the basic gender roles idea (i.e., male elves generally are the ones that go into battle whereas females are the healers, etc etc) so it is just being true to the books. HOWEVER, I actually just got out of another thread where somebody was upset that they changed some aspects in the movie to be more politically correct (not about women though, it was something about dwarves), so I say if they can change one thing to be politically correct, why not another?
It didn't really make me uncomfortable though, I understand that they're just trying to stay true to the books, but the one thing that did kind of upset me is how Tauriel (and don't get me wrong, I love her as a character) is introduced, and she's this lovely strong female elf character, and of course from the second she's introduced her main focus is romance. It starts off with Legolas' unrequited love and then she's thrown into this love triangle with Kili. I really found it to be unnecessary, and I would have enjoyed the movie so much more without her romantic interests being mentioned at all