Chaos tokens function as a 4 in your dice pool, so they can still be used for 1 , 2 , and 3 actions, too, not just 4 . Ogre is intended to use this 4 on a Throw or Grapple, but can also use it on Watch Your Step just fine.
The Bomb's Reversal Form lets them take their Actions at any time. If a player in range EVER builds up tokens to do something, like a bunch of Speed tokens to run around, a bunch of Iron to block with, or a bunch of Power for a deadly crush, a Bomb can instantly punish them with an explosive Apply Pressure.
Alternatively, pair the bomb alongside a Flametongue or other Winter stance to really shove tokens on everyone for you. They're a Stooge, they are not meant to be used by themselves.