I think you're referring to properly wrapping a cable, which deserves its own video!
I elected not to discuss cable-handling specifics in this Pro Tip video (the Pro Tip videos are meant as bite-sized basic pointers, in contrast to full-depth tutorials) because of multiple cable setups and variables that entails, including internal cable boom poles versus non-cabled poles, various junction boxes and alternative cabling/monitoring options, and cable variants like coiled XLRs (which I personally prefer). It's definitely something that will be covered in a full-length production sound kit video. If you've experienced or seen any particular cable-related pitfalls, definitely let me know and I'd be more than happy to integrate it when scripting the more robust production videos.
While it's good to have faith in first-time boom users, I've seen a lot of people hold it incorrectly (to the point of getting an unusable result, hence my use of the word "incorrect"), and basic concepts like "point the mic in the right direction" do in-practice have to be pointed out sometimes!