https://www.formula1.com/en/latest/article.breaking-w-series-to-support-f1-at-eight-races-in-2021.2z51pSDPY1eUsON84eIrdI.html
"We are very grateful to Chase Carey, Ross Brawn and their colleagues for having faith in W Series, and for prioritising diversity and inclusion in this way, and we intend to help them drive forwards their excellent #WeRaceAsOne programme this year and in years to come." That in itself is great, however it also is probably just for PR. Women being interested in racing -> more potential viewers.