They did the right thing by removing the conquest vendor when they noticed the 28k cap. Tho they totally screwed up by restoring the vendor before removing the 28k cap. The only thing they can do to redeem any kind of dignity is to restart the whole season. People with almost full grevious gear is running rampent around in the ladder having a huge advantage over the people with normal cap.
If they cant remove the gear they should just give everyone 28k caps so we are on par. If they decide to try and remove the gear im betting it's gonna be weeks before anything is done about it, and than people are gonna have more grevious gear, and im 100% sure they end up removing gear from people who got it without abusing the bug.