+1 support for OP. Do away with the one hit kill effects but retain the mechanics. Let it deal some major debuff that would test the skills of the team in using their jobs.
For example, healer gets stoned in T7. The other healer needs to buck up and other players need to watch for AOE moves to interrupt (yeah requires the team to avoid stun spamming to avoid stun resistance) to keep stoned player alive.
In T5, stepping into a Twister throws the player high into the air and he\\'ll drop with 1hp left. The team is inconvenienced for maybe 2 GCDs, team has to compensate for this dynamically. If OT gets thrown, MT or DPS helps with stunning of DK. Healer stand by to big heal player when he lands.
I\\'d also like to see new end game dungeon crawlers instead of the current arcade game style raids. These dungeons should test players on their ability to play their jobs well, instead of reacting to one hit kill gimmicks.