And is the company even small? "Some of our bigger customers purchase up to $15,000/week with us" sounds like they make > $100k revenue/week regularly, baking thousands and thousands of cakes every week. I don't know SF standards of small, but that sounds like a solid operation to me - one that definitely has the resources to go after a corporate client that doesn't pay.
I still find it weird to focus on gender/sex and ethnicity, and I have my doubts that Munchery invested a lot of time & money into finding out who is behind the companies they don't pay and what the owners' gender is.
Because that's what I understand the article to complain about. It's not a "three women baking pies and trying to make ends meet"-company, it's a "we produce thousands of cakes a week"-company. They are not going to go out of business, but they will probably have learned to be more active about unpaid invoices.
Not everything is about suppressing women or minorities, and crying wolf all the time will lead to people ignoring the cases when it actually is.