I think JJ's uniforms respect the canon and are modernI know that the TOS female uniform convention was the skirt. Frankly I don't think that matters at all though. The creators of DSC should do whatever they want with the uniforms. Adherence to canon is, as I've said elsewhere, a straitjacket on creativity. A little canon adherence is fun and interesting. But too often it's just suffocating.
And let's tread lightly with blanket comments about what feminism is and what it means for female representation in media.
It can not be denied that TOS was transgressive in the conservative society of the moment, like the kiss of uhura and kirk for example. Doctor king said that star trek was his favorite show.