The new card Wyrmrest Purifier will turn all bombs into random class cards because Bomb is a neutral card thus effectively diffusing them. Purifier fits better into my highlander mage deck.
The worst problem with bombs that I have run across is it is more devastating to the new "no neutral" pally card decks. Putting a neutral card into a "no neutral" deck to defeat bombs makes no sense. At least if you run two Purifiers you have a good chance of diffusing some bombs before needing to use your "no neutral" effect but you are still hamstringing yourself.