Maybe, for those strong ones who normally break through to the Breaking Realm step by step, Shattering the Void is just a shortcut on the path less traveled. This realm might also reach the state of the Breaking Realm, but it would attract the attention of 'Heaven,' which is probably why Guang Chengzi screamed bitterly after validating the Broken Vajra.
Jiang Dali speculated that Guang Chengzi might have suffered Heaven's Punishment back then.
However, since the other party was originally a strong person in the Breaking Realm, even if he suffered Heaven's Punishment at that time, the outcome might not have been too miserable. He might not be truly dead now, but he likely paid a huge price, as evidenced by the Immortal Bone Relics he left in the world.
