In https://www.wikifunctions.org/view/en/Z10167 there are no activated implementation so user can not run the function. The user should know why they can not run the function. Probably we should provide a message "you can not run the function because there is no activated implementation".
P.S. Once community have an approval process of implementations, it may be difficult to review multiple interconnected functions because functions can not be run until approved implementations exist.