Looking at the way that Obsidian links work - the reference in the Obisdian URL is to a relative pathname. If you rename the Obsidian note (or move it, or re-name the folder), the link breaks.
This impacted my use of Hook, but also something as simple as posting a link to an Obsidian note into an Omnifocus task.
Any thought on using a Unique ID to craft these links, so that the note will maintain the same link?