This is sort of true, but even adjusted for inflation its performance is obscene.

https://www.boxofficemojo.com/chart/top_lifetime_gross_adjusted/?adjust_gross_to=2019

For example, Barbie has already close to tied with Toy Story 4, which puts it somewhere in the top 150 inflation-adjusted film grosses of all time. It's probably already at 3-4x what A League of their Own managed, which I think was the previous highest-grossing movie from a woman adjusted for inflation, though I am not actually sure that is right.

I'd bet she's holding the record for highest grossing movie directed by a woman any way you measure it.

And it's still gaining 1st run sales.