
Originally Posted by
Kalise
Well, the fact remains, at the end of the day, Tanks will need to do meaningful damage.
Even if there are other Tank duties to consider, Tanks will need to be pushing out meaningful damage.
Why? Scalability.
Typical "Tank" duties are often binary. Usually something like "You either survive it or you don't". If you survive the damage, that's all you need, since you can be healed back up. (This is somewhat marred by tanks having invulnerability CD's allowing them to actually bypass literally any need to hit any sort of minimal gear requirements to survive a particular attack...)
Yet, the driving force for doing content and acquiring gear is to improve your stats. Hence, if "Tank Duties" are tuned around being survivable at minimum item level, which they literally need to be, then what purpose does gearing up serve? None. You simply will end up surviving the same skills but at a slightly higher HP total. That doesn't make the fight progress any better. Not unless it affects something like being able to drop use of a Tank LB and instead use a DPS LB.
Damage is typically the only facet of gearing that scales infinitely. Every point of DPS reduces the kill time of the boss by a fraction. Thus, damage needs to scale with gear at a rate which feels useful, so that gearing up feels useful.
Part of this also includes relative damage to DPS, since if DPS outscale the Tank significantly, then the Tanks increase of damage, no matter how large, will feel insignificant. I.e. If a Tank doing 10k DPS managed to increase his damage by 50% going up to 15k DPS, but at the same time DPS doing 20k DPS managed to increase their damage by 100% going up to 40k DPS, then the 5k increase from the Tank pales compared to the damage that the DPS are now doing.
This last point is of some notable concern for this expansion given that Tanks have a reduced scaling backwritten into their damage formulae, which will cause them to scale significantly slower than all other jobs. There could reach a point closer to the end of the expansion where tanks gear becomes irrelevant due to how minor impact it has on beating enrage timers.