Even that's a hurdle. Trump can be bombastic and still be fine. Hillary has to be very careful of "shrill", "mean spirited", and the ever popular "bitchy." There's a hurdle there. Passion serves Trump well, not her.
I don't see how Hillary being the first woman who might get elected president squares with this idea of it not really mattering much, what with all that the description brings to the table. Surely we can recognize the historical significance is at least in part due to our reluctance to elect a woman president? That shouldn't even be controversial.
She's made history already by being the first woman nominee from a major party, a party that makes great hay out of promoting women's rights generally and being sensitive to women's issues. Now the idea has to sell to the rest of the country, those outside the fold. I can't see how this could possibly be without serious gender-based challenges, despite the politically correct "how things ought to be."