Yes, I agree with you that articulation is important. However, I am not doing this to be ‘dumb’ or ‘fit in’. We all know the “if your friends jumped off a bridge“ dilemma. I’m doing this for me because that is what I am comfortable with. If you are uncomfortable with it, you are more then welcome to use “she/her”, as explained.
As for this being a “cultural mold that is not going to last”, same-sex, transgender and other LGBT relationships are all throughout history.