I wish the article had been written in a more straightforward way, since it's a really, really important question.
I ask it of myself periodically. It some ways it is semantic, but in others it's very profound. Do I blend into the world of women to the point where I'm no longer Different from them, or are the residual anatomical differences and the differences in our history such that it makes me in a special category of women?
I've heard a lot of people on this forum say that they they do not consider themselves trans any more. They're just women (or men).
For me, it's not that simple. For one thing, I'm non-binary gendered which I'm about 50% sure is really a thing and not just manufactured from my attitude. For another, I like to speak about my experiences and educate others, so I out myself on a regular basis.
But does that matter? Does it place me in a category, or is it just a description, like being tall, or living on the west side of town?