So I tested this options and it looks doable. The page is generated with a slight delay as a workspace has to run. Here's what I did:
- Created a simple workspace to read the html "dashboard" as a text file - all at once - then write it back to another html file. A separate workspace creates the original dashboard (an html summary table with links). I used the FME Server built-in parameters to locate these files:

- I then created a Server App for the above workspace, which has no published parameters, and set it to run immediately:

I can now share the Server App URL, which will stream the "dashboard" to the user's browser. Are there alternative ways that don't require a workspace to run to just display a static web page on FME Server?