Answering your inquiry at SA Williams correct resolution. Most at the forums will say the URL is not as important as the title, content, context and Hub structure. Those have more importance for ranking results on a search at Google.
The URL is usually prompted automatically by the title used when 'first' creating the Hub in edit mode. It can be edited, but once published is permanent. Yes, it is smart to match the title. So, being more generic may be good if the title does change. There are suggested ways to create the URL like they should be short, have 1-2 keywords, and have hyphens and not underscore. From there it gets technical and really not necessary for Hub creation, IMHO.