Starting tomorrow on 6/11/2014 (barring any unexpected issues), all T1 encounters will have an extra 2 minutes added to their enrage timers. All T2 encounters will have 1 extra minute added to their enrage timers. Their mechanics will otherwise remain unchanged.
The essence of the problem here is the drastic difference in player skill required between expert dungeons and raids. Even with a largely imperfect combat rotation, you can still win an expert dungeon with the provided gear if you invest the effort to learn the mechanics. In contract, raids (with the current tuning), leave no tolerance for player failure. This, in turn, pressures the raid community to demand outright extraordinary attributes from individual PUG members to compensate.
Learning to raid is much like learning to play an instrument; you get better with practice and you work your way up from the basics before you're ever able to play actual music. Similarly, learning to design raids is like learning to compose music for an instrument; your ideas are built around what you believe the instrument is capable of. Since Rift has launched the design philosophy has evolved from 'Twinkle Twinkle Little Hylas' into 'Für Maelforge'. This has an unintended consequence for players who started raiding after Storm Legion launched. Players are handed an instrument, briefly told what it can do (in theory) and that they must now use it to play the best song in the world or else the demon will eat their soul.
While the requirement proposed may seem entirely unreasonable, it isn't without reason that it is requested. There is a requirement for performance in later raid tiers that utilizes the the skills learned from these encounters. That leaves us (as designers) with one of two choices: Gut the raid mechanics (which would be both tragic and self-defeating) or allow players a larger margin of error to learn them. We calculate error from DPS, healing and deaths into the total enrage time of any encounter. It unifies the various possible outcomes into a single number. By increasing that number we expand the number of viable strategies for success.
Regards,
Anony