Every one added to the game became something extreme, I don't know if this is intentional or not, but now you find one or more than one crate per island!
I think it's great that they added it but they should reduce the frequency, recently it happened (and continues to happen) with the "chests that open".
It should be a relatively difficult crate to find, it means an interesting plus in combat. Please do not fill the islands of boxes, keep a proper balance.