Agreed, that's a very likely outcome. If she were living in ancient egypt doing this same thing with a substantially smaller and more primitive world population the odds of this work being future museum pieces would be entirely different.
Instead what we're looking at is someone's blog post describing their arts and crafts hobby.
It's not "a question for conservators and museums", it's a question of a huge and advanced society deciding her work is exceptional enough to be historically significant vs. many competitors.
anywho, i was at a farmers market // flea market the other day and walked past this old looking gown. i noticed the price tag was set at nearly $1,000, so i went up to the lady and asked her if she'd made it, why else would it priced so? she laughed and explained to me that she could never dream of being so talented, she was simply invited to an estate sale the previous week in rural Vermont (is there any other kind of Vermont? lol). it happens that the family farm is hundreds of years old and the dress i'd been so captivated by was older than my home state. for being so old, it was in pretty good condition. i learned that it was handmade by one of the daughters of the original homeowner. i asked her why she was selling it here and not hoarding it herself or donating it to a museum. apparently, the daughter was indeed skilled at dressmaking and it was one of a dozen or so such gowns, this being the one in worst condition. a couple were kept by the family, several were sold to collectors, and the rest donated to museums. so, the way i see it, it would not be so strange to see works like this in a museum some day.
[0] https://jacobin.com/2022/07/tabitha-arnold-interview-textile... [1] https://hyperallergic.com/678743/spirited-textiles-capture-t... [2] https://www.disobedientmagazine.com/disobedientonline/2021/0... [3] https://www.carnegiecenter.org/exhibitions/form-not-function...