This person's problem was with the writers trying to promote an agenda, by taking away the player's choice. In
Mass Effect, you can portray Shepard as a racist asshole. Here, the only response you can give is a positive one. And they only briefly mentioned the political stuff.
Aside from misusing the word "transvestite," this isn't too bad. It's not complaining about the character herself, but about her being poorly-written and the devs using her as a shield.
How do we even know this is about Mizhena? There's other political stuff shoehorned into the game too.
Edit 1: accidentally posted too early.
I'll give you this one, since the reviewer does seem to be genuinely transphobic, if only unconsciously. But that doesn't invalidate the other points he/she makes.
There are legitimate grounds to think Mizhena was poorly-handled.
The rest pretty much speak for themselves, at least to me. To sum up, I think the only remaining one that's really "transphobic" is the last. The others are kind of poorly-worded, but I'm not sure if they can be considered outright transphobic.