It killed me again, today; a little lag, a rubber band over the wrong spot, and BAM! 20 bats in Coalescence Chamber, red alert, and between being harried, hamstrung and sickened, it was literally impossible to get to the caster who killed me.
This has gone on long enough. Dungeon Alert was a stupid idea when it was implemented, did not fix anything, and has created a huge problem. It is long past time for it to go.
At least there is a workaround for the ladder bug (i.e. always jump onto the ladder), but there is no way to get around DA in certain quests.