Uhura was a major character, she was black, and she was a telephone operator. So take the good with the bad. The woman who is and will always be Uhura, Nichelle Nichols, has, evidence suggests, had a great impact on the self esteem of young black women. So take the good with the bad.
The first episode of Star Trek, The Man Trap,certainly reflected women in a negative light, as demon who will suck you dry as quickly as they say they love you. Predators who are only interested in what they can get, and will give only as much as they have to bleed you dry. When they are done with you they will just find another, and when they are done with them, and you are rejuvenated, they will deal with you. Yes very misogynistic.
But Star Trek changed with new episodes and new series. While this is called the reboot, really ST:TNG did that, by advancing time and creating a new reality in line with what we in the late 80's saw our hopes to be. Then DS9 and Voyager continued to match Star Trek to out expectation of a universe accesible to everyone.
Though they were criticisms, the series and film continued the story, until Enterprise. I think that they messed up on Enterprise because no one really wants a starship that is broken, we saw that from the films, and the earth that was presented certainly wasn't the earth that would be expected given the very rich and varied mythology of the show. The way to deal with the past was not to go to the past, but to jump to another future, as was done with TNG.
That said what Abrams is doing is not a reboot. BSG was a reboot. The new Doctor Who is a reboot. What this Star Trek is more akin to the new Charlie's Angles, a brazen attempt to generate huge amounts of cash based on old ideas. This is, as some characterized the remake of Indiana Jones, purely physical and sexual assault.
There would have been so many ways to use these actors in different characters. What would, god help us, the children of Riker and Deanna look like and do? The DS9 timeline is not popular, but there were some interesting life forms. Everyone is complaining about the mythology and timeline, but that is not the problem. The problem is the characters of Star Trek is stuck in the 60's. Trying to make them fit what we have today is not rational. The black woman is not automatically the telephone operator. The white man is not automatically the leader. It seems that the movie is made to promote the nostalgia that so many feel, that the 60's, when everyone knew their place, was better.