I think you'll find a shortener makes externally sharing Wikipedia/Wikimedia links a lot easier! It's super helpful for social media campaigns, conferences or hackathons where you want everyone to go to a page, etc.
There are open source shorteners so you can roll your own: https://opensource.com/article/17/3/url-link-shortener
Plus might be worth seeing if the Semantic Wiki person who owns http://wi.ki/ is amenable to selling at a low price. I bet they are :)