I've been slow to follow this, but I'm not surprised at all by this outcome.
Effectively it seems like the USWNT wanted to have their cake and eat it. They were offered the same deal as the MNT but rejected it, they signed their existing deal due to the guarantees that it provided, but then they demanded that they get paid and receive bonuses according to the deal that they rejected, while also wanting to retain the guarantees of deal that they actually signed. There is no legal basis for that, and it sounds pretty farcical to be honest.
No wonder their lawsuit was dismissed. It seems like they were hoping that a wave of sympathetic media coverage and backlash towards the USSF (who I don't deny are pretty incompetent) would carry them through, but they weren't grounded in reality. And given the current economic climate and likely prolonged contraction / recession ahead, I think that a lot of public sympathy that they previously had will dissipate.