I don't read this as Chart "shifting responsibility off the right wing." I think she is arguing that, knowing as we all did that the right wing had this for a goal, it was deeply foolish and misogynistic for the left first to put women's rights on the back burner and then to tell us that the most important issue facing women today is the inclusion, acceptance, and centering of males as women.
To my knowledge WoLF has never received any funding from the Heritage Foundation. Two WoLF Board members did speak at an event hosted by the Heritage Foundation in 2019 called "The Inequality of the Equality Act: Concerns from the Left," viewable here:
I really recommend the video, especially the moving testimony from Julia Beck (a young lesbian removed from her city advisory role for speaking out on behalf of same-sex attraction) and Jennifer Chavez reading out the words of parents of children who believe their bodies are the wrong sex. Nb this is also the event where Kellie-Jay Keen aka Posie Parker sat in the audience and listened, which as far as I know is the entire source of the "cozying up to the Heritage Foundation/taking money from the Heritage Foundation/looooooooving the Heritage Foundation" accusations launched regularly against her.
When it comes to funding, you may be thinking of the one-time $15,000 grant WoLF received from the conservative Alliance Defending Freedom for legal costs in WoLF's countersuit against Gavin Grimm's (a female student wishing to use male facilities) Title IX suit. As WoLF used that money only for this lawsuit asserting that "sex" in Title IX means sex, not self-declared gender identity, and did not change any of its policy positions after receiving the money, I really have no problem with it. I can see that others might, but in that case I urge them to contribute their left-wing $$$ to the women taking these cases to court.