There's a distinction to draw between industry and position. The article says that the industry laid off more women than men, in proportion to the number of jobs held by the respective genders.

The article says this could put the years long effort of a push to equity in jeopardy. I think this is fair to state, given that a minority group was more heavily affected by layoffs. I also think its fair to recognize that certain fields/positions have different kinds of issues to overcome and different diversity of talent. If you let go of women proportionally more often in the industry as a whole, it's reasonable to assume that all sectors in that industry also similarly suffer from the drop in diversity. Of note, the linked article on equity also talks about efforts in the tech industry, not tech/engineering departments within said industry.