As far as Palantir discriminating against Asian Americans goes, my understanding is that most of their "engineering" positions aren't really that technical--they tend to be customer facing. Old timers in government don't really like Asians, and so it "makes sense" to not have them represent the company. (Descriptive of what's happening here, not prescriptive--even if that hypothesis is true, I'm the type to say screw it, hire on capabilities and work ethic.)

There's also the tendency for Asians to be conveniently bucketed into the "white" bucket, which makes them easier targets and also is a reason this lawsuit won't go viral on social media.