[watwut]

From the point of view of a company that employ many people who do hiring, someone is guaranteed to write something stupid. When people write code, they do bugs. When they write feedback, they do stupid.

Or even more likely, someone will inadvertly show his bias that could have stayed under cover. People are not that great in hiding their biases over many interactions.

[learnstats2]

We're dancing around a reason that the article misses: a lot of hiring decisions are discriminatory.

If they were confident about having processes with no discrimination, it would likely be advantageous to the company to show their cards and give the feedback.