OK, I read the article. Truthfully I see nothing wrong with the presentation.
They made it clear the person they were talking about was on hormones, they made it clear the person was transexual. I don't feel the use of the male term was done to insult the person, it had to be stated to make the article relevant.
They did make it clear that in their opinion the cancer was due to taking the hormones and treated the "person" not the male or female, the person.
As for men having lumps, cancer, etc it is rare but does happen. I had a lump removed from my breast over 30 years ago. Luckily it was benign. (It could have been from hormones, I had been on and off my wife's birthcontrol pills back then).