Miranda was always about her career and self reliance as a woman. She used to rail against the others for relying on or giving things up for a man/marriage. She was vehemently against Charlotte giving up work to be a Stepford wife to Trey, against Carrie borrowing house deposit money from Big, against Carrie moving to Paris, against all of them putting a man's needs before their own. But in AJLT, she's turned into the trailing spouse of Che, and that's ok because Che is a "they"?
Miranda was also the most conservative of the 4 about sex (yes, even more so than Charlotte, who would do more outre stuff as a man pleaser)and doing things out of her comfort zone - much of the comedy of SATC was the contrast between Sam's complete comfort with anything and everything, and Miranda railing against doing things she didn't want to do (eg. butt licking bloke, dirty talk bloke, outdoor sex bloke, watch h me on the toilet bloke), pushing herself to give it a go, and it backfiring on her in one way or another. Now, post menopausal and pushing 60, we are supposed to be arsed to believe that she's going through sexual liberation, when most women can't be fucking arsed at all. Why's that? Oh simple, because Che is a they, and it's totally different doing all that stuff with a they.
The Miranda of old in the situation of moving to LA would be doing the Californian Bar exams, working in a pro bono law firm and/or studying, not kicking around picking seaweed off the beach. She needs to be free as an emotional support for Che - a role she would not have assumed if Che was a man and not a they.
The old Miranda does not exist. Cynthia Nixon, would be Mayor of NY and so liberal her brain's fallen out is that character now if real life and on screen. And anyone paying attention knows that all the normals need to be support characters for all the theys, this is what they demand: unquestioning, uncritical self sacrificing, trampling our own boundaries, pushing our own comfort zones, validating all their choices.
This is not the SATC of old that, not so much pushed boundaries, as revealed what women already did/talked about frankly with each other to a wide audience. AJLT Miranda is political propaganda, pushing for something that the writers and CN want to exist.
And it's the same with the Rock story. Transed in school behind the parents' back and the parents kicking up the tiniest of stinks before just surrendering to it. That's the utopia of the theys. It's no wonder that the Guardian loves it.