I made a note of you saying "also" because if infers an admission that you also refer to her with they/them pronouns (& not just she/her promouns, even though when she uses she/her pronouns) bc you still think that "they" is gender neutral & that it isn't misgendering when you use "they" for her
What it means is that if someone uses "they" but then also uses the she/her then they're probably not a transphobe. Probably less so when they're referring to a trans cousin who they supported as trans from age 5. I said I can see how it could be a slight and will be more cautious in the future.