Here's the thing:
Daily chores make people quit faster than "beating the game" does, especially when they can't even help their friends our to do the content.
These people end up quitting in disgust and anger, and will greatly reduce their chances of coming back.
Quitting because you "beat the game" makes you quit happy and fullfilled, with a sense of accomplishment, and will probably return to play the game.
You NEVER want to make people quit in anger due to gates/burn out, that only makes them never want to return to your game.