If she had said that it is time that gender is no longer a factor in determining the President of the United States, then that's correct. But the statement "It's time a woman became President of the United States" is simply not the same. We can give her some slack and make the conclusion that she was indicating her belief that the playing field is leveled, that a woman can just as easily be elected as a man.
But that's not the statement she made. She said "It's time", making it clear that that a woman should in fact be elected now. Such a statement presumes that America should be looking for a woman, and not someone whose principles should be the most important factor.
She gave no reason why she thinks it's time.
Here are three possible reasons why she might think it is.
1.) Simply being female makes one a better candidate.
2.)Simply being female doesn't make one a better candidate, but in the interest of quotas, a female should be president.
3.)The current crop of male candidates appear to be cowards, while the two most couragously conservative candidates are female.
Which of the above three reasons do you guess she thinks?