I don’t understand what this article is about.

I also get RSUs at my job. Every “performance review cycle” together with salary increase I am awarded N shares that will vest over some period of time (multiple years). A few times a year those shares are vested, and after they are vested I actually own them and can sell them (or hold them for as long as I want). So they are part of my compensation package. If I get laid off (or quit) I will obviously not receive my unvested shares. The same as I will not receive any salary that my company would pay me if I continued working there.

So I don’t understand how complaining about not receiving unvested shares is different from complaining about not receiving salary that you would get in the future by continuing working for the company…