So, to fight that elevated inflation they are killing demand, and when demand sharply drops, you can't keep paying your workers as before (because you sell less goods!).
Moreover, companies simply got fat during the pandemic and over hired. I mean, there are probably also a few (lot) companies which do what you write, but I don't think Flexport is one of them. It's more likely they over hired like everyone else. Also, you might want to take a look at the current container fright prices [1]. Pretty parabolic.