Google has changed the way URL string was looking before. There is this news hanging around these days and the change can be seen in search engine itself.
These new cleaned URLs are more manageable, more likely to be shared on Twitter, Facebook and other social media platforms. You make website more visible via sharing and linking, also tend to help its search rankings, and increase quality traffic for you so these cleaned up links are really useful.
Google’s shorter URLs are now less intimidating to users. You can check and get an idea what the page is all about by looking at URL now.
The less words the better. A short URL is quicker to type and read. This practice of lessening the URLs length gives the opportunity for every word to receive more value from a search engine spider.