Personally, i don't think stamina-based events is a bad thing since you'll be spending all of your stamina on instances anyway. Plus, the required materials is not hard to get. For example, the dice you need for the current event can be taken at 2 sweeps. While daily mission requires at least 5 sweeps to get the exp. So the event goes with your daily stuffs which can't bother you at all.
On the bright side of "limited resources" for an event. Getting 2 dices a day from sweeps as a limit has it's own advantage as well. Like maximizing what you can get when you don't pay makes your complacency satisfied.