I’m gonna play devils advocate here (and probably be monstrously downvoted);
ICEBlock stored the location data of all its users on Apples iCloud Servers. This the perfect target for ICE; a complete database of locations of every person who doesn’t want ICE to know where they are.
One assumption is that that Apple realised how tempting this data is to the current demonstrative administration and purged it before ICE could get their civil-liberty-abusing mitts on it.