Hi folks - Sorry for the radio silence on our side around this issue.
Delivering this functionality is a deceptively hard engineering and design challenge. With an operation that impacts multiple threads at once, we need to update many components of the Conversations inbox, for every active inbox user’s browser, instantly, while they are actively interacting with the data being changed, in a performant way, without confusing users through behavior like “all the threads in this list suddenly changed or disappeared!”
We do hear your feedback and see the need for this update. We are actively working on delivering this functionality and expect it to be available in the next month!