Oda set the bar high for PK lvl characters like Roger,Garp and Xebec.
These characters are able to destroy a island during their battle without even hitting the ground, just pure shockwave/haki power did it.
We saw so far top tiers fighting each other in a all out battle:
Oden vs Kaido> Udon got little damaged(because of Kaido Fire power)
Big Mom vs Kaido> little damage on the castle
Kaido vs Supernova> damage on the rooftop.
It is the first time ever a island just got destroyed (crumbled apart) because of a collateral damage of top tiers who didn't even hit the island ground.
Neither Hakai, Flame Bagua, Bajrung Gun, Puncture Will or mother( Big Mom move) did something insane like this and given God Valley is probably 5x of Onigashima, it is crazy...
Pk lvl tiers are really different in power.
Doubt we gonna see many PK lvl characters from now.