Hi there. I have a bit of a different take. I'm very familiar with Greenwald's work. I believe based on the tone of the article and his careful choice of words that he agrees with Martina.

He takes pains throughout the article to paint her as an admirable figure. He demonstrates how appalling TRAs behave. He shows what an asshole MacKinnon is, and how respectful Martina was in that exchange.

As for the issue of how he handles trans women in sports itself. Greenwald is an honest, factual journalist. He's legendary, as well as a lefty. Also in the LGBT community. He's not quite in a position to come right out and agree with her on this or he'll be canceled out of existence. Instead what he did is walked a fine line. He said he believes his intentions were good, that she wants to uphold the institution of women's sports that she worked so hard to build up (true). He throws a few bones to the TRAs that he KNOWS are rabid and says maybe she's misinformed (not necessarily inaccurate from a factual perspective, he's not a mind-reader). And then ultimately says I don't personally understand the science enough to ultimately make my own judgment on this matter (so not actually disagreeing with her). Which, he can get away with because he's not a science reporter. And he can eke by without enraging the TRAs, while also indicating to his sane readers that he doesn't necessarily buy into all of that.

When you take this all together with the overall tone of the article, I'm going to read between the lines and infer that he actually is Team Martina on this, and very cleverly gets this across while toeing the line enough. Or, at the very least, has constructed the article in just such a way to present this issue to a wider lefty audience where Greenwald is highly respected to show them the madness that is really going on in the trans/TRA community. If you take a look at the comments, people are peaking hard.

*New to Saidit, longtime lurker on reddit, hope I'm welcome here.