As I explained his Gura still looked massively more powerful than Kaido's Thunder Bagua so it's improbable that his CoA haki was too nerfed either.
An hypotethical Old Whitebeard w/out sickness vs Kaido would have probably been high diff, hence it makes sense if Whitebeard was massively better AP wise, despite less durable by some extent.
An hypotethical Old Whitebeard w/out sickness vs Kaido would have probably been high diff, hence it makes sense if Whitebeard was massively better AP wise, despite less durable by some extent.