In this section, she's teasing/flirting with Darcy. Her statements shouldn't be taken seriously, certainly not seriously enough to call her out for having a character flaw like that.

There's a grain of truth there, Darcy didn't care for women like Ms. Bingley who tried to flatter his ego, and she probably was one of the first single women Darcy encountered who didn't do that. But I doubt she's seriously making general statements about women, and how she's special.

If you look at the men Darcy is friends with, his cousin Colonel Fitzwilliam and Bingley, neither of them hesitate to tease him (Bingley makes that joke about Darcy being a grump when he's bored and Fitwilliam laughs at his 'stupidity' when Darcy is being sullen). That is likely the personality type Darcy enjoys being around.