I have come round to thinking that actually this is a big deal, and I am annoyed about it.
My DC have a mix of Lego ranges, including Lego Friends, and they tend to play with them all together, so I wasn't that bothered about male:female ratios, or females without jobs while all the males are in uniform, because we have lots of the yellow minifigures in a roughly 50:50 male to female ratio, including plenty of possibilities for the women to have jobs and uniforms too, which balances it all out. In fact, my DC much prefer playing with the standard lego figures, because we have so many more of them, and they can customise them more easily - different tops and trousers, different expressions and faces, which you can't do with the Lego Friends figures. Plus we only have 4 LF figures, which is a bit limiting.
But today DD has a playmate round after school, and she absolutely refused to countenance playing with the standard yellow minifigs, or to play with any of the pre-built Lego we had in the box that wasn't pastel-coloured.
I was surprised and taken aback, and finally I properly do see that there is a significant problem with segregating Lego by gender so that some girls, like DD's friend won't consider playing with other Lego, and then feeding those girls who will only play with, or even encounter, that sort of Lego sexist crap, like the pilot in the example above.