I specifically clicked on this topic because of the word “opinionated”. As I already know how to use xargs, I was curious what kind of non-conventional or controversial opinion the author might have.
As I've said to a sibling comment, I don't think it's a bad title, and "an opinionated guide to X" is one of the better cliché for titles that I see (the worst being the journalist that feels like they have to make a joke).