Some people see their pre-transition selves as being one gender, and only use their post-transition gender to inform their new pronouns later. It was written by a person that interviewed her and apparently held her in high respect. All we can see is that there is an abrupt change in the pronouns, where Lynn presumably could have considered herself to match the new pronouns. We don't know without asking her if she was misgendered by the article, and we are a bit late for that.