Brewdog are a totally twatty and hypocritical company.
They introduced a stupid pink beer as a marketing ploy and cooked up a stupid tale about it being ironic and in support of raising awareness about the pay gap.
They are the most litigious company against other small breweries, I know if a local one that was fucked over by them.
They have also deliberately courted legal cases against them with their oh so daring names and packaging. The court cases affirm their faux rebel / punk brand.
They would have been absolutely aware that someone would take them to court for sex based pricing, Their brand lawyers would have pointed it out immediately. They are probably disappointed it took so long. LOL, they probably even paid the guy to do it.
Despicable company, and their beer has a horrible harsh edge to it.