Originally Posted by
TouchandFeel
Gnashing Fang being on a 30s recast doesn't make the job more complex, it makes it less complex. Being on a 30s recast mean that it lines up with all raid buff windows. No Mercy then being on a 60s recast means that it and Gnashing Fang just line up, no adjustment or extra thought required, just use No Mercy with every other Gnashing Fang.
As far as fitting in 1 combo rotation, a GCD DoT and every oGCD available, that is virtually no different to how other tanks try to line-up and fit as much as possible into their bursts. Also with No Mercy's 20s duration you have plenty of time to fit all of that in. At least on PLD you have to fit two DoT combos into FoF, one at the beginning and one at the end, which is discernibly more complex than No Mercy.
IMO, GNB is not this high-skill, complex tank job like some are making it out to be and really appears to be quite the opposite. What it really appears to be is a job intended to get more new players and DPS players to try out tanking. It's a heavy fan-service job with a good deal of pay-off for often less effort than the other tank jobs. The rotation is fairly straight-forward, feeling fast and powerful while remaining pretty simplistic and being similar enough to a lighter version of a DPS rotation that will feel immediately familiar to a player trying to make the switch.