@Inamuddle36 she specifically explains all that in the article
All the advantages of going through male puberty are listed
The fact that this person still has a penis is mentioned often as it helps MEN understand that these are not neutered, operated males on a complex physical and emotional and hormonal pathway... that they are literally biologically entire males claiming to be women
That a person with a penis can call himself a woman
Many many men don't know this, they think any trans woman has gone through a painful physical hormone process and can be very sympathetic until they learn it's actually as simple as saying you are a woman, to now BE a woman
Honestly, it's taking a really long time to educate men on this. And until men get it, nothing will change, as men are still predominantly in power (at Vogue, at sports bodies, in government)