The manuscript target is fine.
My problem is with the word count of the session target, which get reset every time Scrivener shuts down. Given that there is a reset button for it, then it makes sense that it should return the running total until the reset button is pressed. Given the existing shortcoming in Scrivener in that it doesn’t record daily word count totals (unlike some other products), this unhelpful act of automatically resetting the session word count means that is isn’t even possible to count the words written in a day. That’s not very helpful. My preference would be that it resets only when the reset button is pressed.