The best thing about Zelda Classic and its biggest selling point should be that a quest maker can do whatever they want, however they want, whenever...
1) Quest makers put their tastes and preferences first and everyone else second
2) The "everyone else second" part can only be implemented if and only if it takes a very short time.
3) If large amounts of money are being paid for the quest change rule number 1 to "sponsor tastes first and own tastes second" and rule number 2 to "must be implemented even if it takes nearly forever".