User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-1.186.102.252-20150720073553/@comment-16281343-20150720075406

Remember that every ability, no matter how OP it can be considered, has a limitation. Rather, it depends on the user.

Power of Destruction is said to be able to turn ANYTHING to nothing. But we see time and time again with Rias that that is not the case.

Sacred Gear Canceller is said to turn any ability from a Sacred Gear or affected by it to be cancelled. We now know that isn't the case with Rizevim.

That also applies to Belial. There will be a situation that his ability won't work as intended.