I've been asked several times since yesterday how to open a workflow.is link in Shortcuts. Currently clicking on one takes you to the gallery of Shortcuts and nothing else happens. If you copy the URL and use a very simple Shortcut then you can click the "Get Workflow" link and everything works as expected.
Here it is in action:
The iCloud links for Shortcuts seem to be having difficulties at the moment - so you may want to just recreate this one by hand.
Download the Shortcut (the link may not be working).