During a hangout, one SEO professional asked John Mueller about URL length, and whether or not it is important for SEO.
John replied, saying that no, that the length of your URL is not important for SEO rankings.
John said he believes that it’s a good practice to have some of the words from your article title in the URL, so that it’s a more readable URL.
However, it’s not an SEO requirement that you must have actual words in your URL.
This happens at approximately the 4:51 mark in the video.