I’m afraid not. While saving the task to database, the CMS value has been retrieved and saved as the task name.
Currently, there is also no API to get task name based on the URI, so the solution I can think of will be saving the URI as task name & we handle the value we show to UI.
@dolong do you have any suggestion on this matter?
In case you use Portal, I think you need to override/re-implement the page to show task.