http://steamcommunity.com/id/Batabii/screenshot/613840289906513007
I was stuck here for about ten minutes. The greavers were freezing me THROUGH the unbreakable blocks. Since I was solo, there was nobody to unfreeze me, and since the greavers weren't damaging me directly, there was nothing to break the ice, they just keep resetting the freeze counter until I happened to luck out and they delayed just long enough to unfreeze me. I sent a GM notice and they suggested I use bug reports, not realizing the urgency of the situation. Can we prevent greaver statuses from penetrating blocks? Bomb blasts like the Nitronome don't penetrate...and really there should be a way to break ice other than waiting or using a remedy vial or a friend...too many times I died on a freeze vent because I had no way to escape.
Your situation is a special case, but I can't tell if Greaver permashock and permafreeze are intended or if they're bugs. There have been at least 3 or 4 times when my group had to wipe because of bad luck with dangerous status effect greavers.