Don't attach the sexist label to things so easily. That devalues it in the mind of people that care not mindlessly.
Not sure if they attached it 'easily', but that comment was squarely sexist in my book. Even if it was well intentioned.
"don't worry ladies its just craft like sewing a quilt"
they will be going on about how they have some "negro boys" in the next group.
I feel that even at my age, I am still a "girl" rather then a "women" personally.