Most companies do not handle candidate review in an emotionally mature or professional way, and the widespread lack of feedback is one of the ways they secure p

Most companies do not handle candidate review in an emotionally mature or professional way, and the widespread lack of feedback is one of the ways they secure protection from possible downsides of their own blatantly disrespectful and sometimes outright discriminatory hiring practices. Assuming that you are like the other 90% or so of employers who treat employees and candidates exceptionally poorly (I'm not saying you are, just assuming for a second), then getting only a 30% rate of feedback calling you out on use of superficial, inconsistent, and (in some cases) borderline (or even blatantly) illegal reasons for rejecting a candidate doesn't sound so bad. It suggests to me that candidates on the whole are more professional than companies, but companies can use certain bureaucratic policies and processes to make sure they effectively hide the unprofessionalism from ways in which it could come back to negatively affect them.