By allowing people to enter every day, you're creating a vehicle for burnout since it's pretty repetitive.
I think daily access works on some content like Ody, but I don't think it works too well on Sortie.
Maybe allow the key item to overcharge, so if you wait 40 hours you get much more Gali rewarded. If players want to do it daily they can, but you're dis-incentivizing it which lessens burnout and lowers congestion.
