Well thats part of the thing, the info they gave us is to little. Simply by telling us the stats and traits of Rune we could already tell if the job will be a flop or not. No Emp/Relic, meant to be a magic tank, these are 2 very hurtful things we already know about the job. Add in something more like for instance no Reflect, no 'Aegis-like' power to fend off magic, and no real offensive abilities or traits, and you can already see the job is trash from the start. In Rune's case specifically PLD and DRK are its biggest threats, and unless it has something powerful and unique that gives it a place, the job will be nothing more than something interesting for people to play around with for a few weeks till they notice their toy is broken, in a bad way.