I hope in the final game they implement some kind of warning that if you rest a quest might get skipped.
Warning message seems a bit excessive ...
Personaly i believe that certain urgency should certainly be stated as clear as possible, but if NPC does that during their speech, that should be sufficient.
I mean, IF Kagha state that Groove will be closed in next 3 days ... i expect it become closed in next 3 days ... unless i do somethig.
But i dont need any system message, or UI things to remind me ... that should be on me.