Digital systems could care less whether you're black, white, brown, red or yellow. This is a great point but it's not applicable here. I'd agree with your arg

Digital systems could care less whether you're black, white, brown, red or yellow. This is a great point but it's not applicable here. I'd agree with your argument if the article were, for example, insinuating racism because code written by blacks and Hispanics had more bugs in it or had poor test coverage. That would be absurd; as you said, digital systems don't care about your race. Sadly, people usually do. Metrics like how fast you can run and how many users like your software are objective and essentially independent of race. The article wasn't talking about objective metrics like those but rather how many blacks and Hispanics are being hired — an area in which race-based discrimination is well-documented.