The article has a couple of good points, even though I don´t agree with all of them. My main complain is the fact that it starts with the doctor´s name and birthday problematic (the second one being a made up thing), it makes me think the author isn´t giving the benefit of the doubt to Horikoshi. Like if you are gonna dismish it, why mention it at all?
Magne´s situation is weird, because clearly the villains aren´t transphobic and she even had that little flashback for empathy points. Poor trans representation and queer themed villains are a problem that most histories have though, even One Piece suffers from it. Ivankov kindgom is with the revolutionary army (good guys fighting against a opressive force), but her people are treated like freaks by the story.
About the police state thing, I kind of see it, but there a lot of heroes that don´t expend all their time fighting villains. Tiger and his friends mostly work in recue efforts, heroes seems mostly like firefighters that simply stop weapon wielders criminals if they happen to find one. The heroes don´t go around enforcing unfair laws or trying to piss off civilians so they use their quirks giving them an excuse to arrest them. In a universe where you can´t take away the weapons that most of your country´s people have, you kind of need a group of people that stop the abuse of super-powers, since you can´t take them away.
That said, if the story ends without addresing the flaws of the system (Toga´s situation for example) or showing us if convicted villains can reform, then some of the article points would gain more weight. Villains should have the right to reform and having second chances, but the heroes shouldn´t have to ask for their backstories when they are stopping them from harming others, that comes after stopping them.