There are three unsupported spreadsheet functions that snuck their way into the docs:
I'll put in a PR to indicate that they are not actually supported, along the lines of how cfspreadsheet is handled.
On a related note, it seems a bit inconsistent that these three functions will have pages, indicating that they are not supported, but most other unsupported functions do not. Do you want pages for all unsupported functions, to provide clarity? Or, ultimately, should these three pages be redirected to the Unsupported Tags and Functions page? (or something altogether different).