For the record, that’s inclusive vocabulary for trans men. Although the author claimed it was trans women who proposed this, that doesn’t seem to be true — for starters, we can (and often do) grow breasts which have mammaries, and could potentially breastfeed if given the right cocktail of hormones anyways — but the conversation occurs primarily in transmasculine circles. The person you’re responding to engaged in a total non-sequitur in saying this was a transfeminine invention.
Anyway thanks for your article. :)