I think it's also really important to emphasize that this is traditional masculinity vs traditional femininity, not men versus women.
I agree with your emphasis. It's worth pointing out that the jewelry program is run by a woman who came up in the '70s and has survived for 20 years in a department legendary for its sexism (until a metoo purge cleaned things up a bit last year) while the CNC program was run by a man who came up in the '70s and has survived for 20 years in a department where it was apparently OK to tell women that "girls just aren't as good at this as men are."
The problem is? People follow the examples they know, as you pointed out. I'm hoping as the general work environment ditches the traditional masculinity, the traditionally masculine shops and exemplars stand down.