Another issue here: The Quest Journal seems to be messed-up/poorly coded, since items that have been logged have a tendency to disappear upon reloading the game. On top of that, finding all items of a certain grade from a single type of chest doesn't seem to guarantee you a prize.
It seems the only indication there is for villagers requesting graded (rare/epic/legendary) items is through the use of the SELL ALL button. (Since it doesn't sell requested items.) Trouble is: the chances of getting the necessary amount of starred items at the "requested" grade is so low, it's not even bothering with them. (Poorly applied game mechanic right there.)
 "Epic Starfighter Pilot Legacy"){kind=icon}
 "Zero IDLE"){kind=icon}
 "Freemium Idle"){kind=icon}
 "DPS IDLE"){kind=icon}
 "Aspiring artist 2"){kind=icon}
 "Synergism"){kind=icon}
 "Royal dice: idle"){kind=icon}
 "Pincremental"){kind=icon}
 "IDLE: Gravity Break-out"){kind=icon}
 "Idle Lich King"){kind=icon}
 "Loot Chest Idle"){kind=icon}
oops you are right :(