Currently the Crystal Eggs have 1 minute and 30 seconds timer.
I feel that’s too much. Most of the time it’s not difficult to reach the egg, and because of the distance the egg typically spawns at, you’ll have a 1+ minute to destroy it upon reaching it.
So that means they’re easily dealt with for a group that doesn’t wish to farm them, and if you’re a group that wants to farm them, time to stare at your feet for a minute, because nothing else is happening. Gets dull real fast, and there’s zero tension like the other modifiers bring.
I don’t know if it’s a bug or what, but recently most of the time when I’ve gotten the crystal egg event, enemy waves/hordes and even specialists are basically non-existant while waiting on the egg to hatch. Which really makes it even more boring with this event.