What? Other classes have it so it's not useful? That makes zero sense. A PLD can handle silence sure, but I'm not sure how you can argue BRD's is moot when it has both a shorter wind up and can be used at range. RoH and Storm's Path are not redundant either, by your logic BRD's having RoD was redundant since a PLD was already supplying RoH like they do Spirits Within. Slash resist is pretty crappy by the way, no group would bring a WAR for that. The only reason a WAR kept it up to begin with was because it combined with Maim and gave much better returns on IB.Their silence is rather moot in the face of Spirits Within, granted it has a half second wind up, but nothing is ever so dire that it can't work on its own. The problem is that you form redundancies between the two tanks. PLD had the STR down combo already. WAR had the SLASH RESIST down which helps both tanks. No one notices since no one bothers to use PLD/WAR combos. Now we have two tanks with two redundant skills that basically end at the same effect... big whoop. .
BRD's don't have a ton of varied utility spells sure, but even with the few tools they do have they bring more to the table than any other dps class.
I think it's a leap to think this has anything to do with PvP. This was purely another change to get more groups to actually use a PLD/WAR combo. They've said repeatedly they do not want class stacking, and the change to LB generation takes that a step further. BRDs got caught in this because BRDs offer so much utility that losing RoD doesn't break their desirability in any way.