I'd prefer that quests would not automatically expire, but that a player can choose to do so (just like the story quests at the end of a chapter can be declined).Event quests need to be skippable if they can't be completed for any reason. My ch 3 city has hit a road block with quest 45 which asks a the player to deposit 20kp into any AW. Access to AWs isn't granted until several techs into ch 4 and no alternative is given. This is a ' game over' for me.
Surely it would be more reasonable to make it so quests expire as the next daily begins just like the daily seasons quests. That way you forfeit the event currency but can still continue with the game.