Be careul what you cherry-pick
And yet the alleged behaviour of HR toward the plaintif reinforces the original suggestion of gender discrimination.
Now on its own, that might simply indicate localised gender intolerance, or a particularly crap HR drone. However, when taken with the pattern of other complaints over previous years, it does suggest a deeper problem.
It's possible there would be a lot more complaints, were it not for forced arbitration. Speculation, of course.