Seems to me her issue was with the Signature Disc(s) and promotion of female pros in general.
I don't recall her saying anything about unfair basic payment practices.
She did allude to it a bit in the Smashboxx interview. I got the impression that the bonus structure wasn't quite equivalent...like the bonus for a win in MPO at a certain event (say, an A-tier) paid more than a win in FPO, for players who were nominally on the same level sponsorship-wise. Though, in the company's eyes it could go beyond simply a gender thing as an MPM win probably also pays a smaller bonus than an MPO win.