Looking further into the S-Bear and S-Hawk situation it definitely appears that VC made two mistakes.
1 - VC forgot about dice DF user steel durable body.
2 - VC confused buccaneers endurance for durability.
Buccaneers durability is less than dice DF steel body durability.
Kuma was hurt by arrows and swords from weak ass celestial dragons.
Daz tanked Zoro powerful sword attackd and slashes without receiving any damage.
Daz will not have been damaged by the attacks that damage kid and adult Kuma.
Buccaneers greatest power is their high endurance not high durability. The reason Kuma could continue fighting after he received damage from the fleet admiral and Gorosei was because he was high endurance.
Since durability can be stacked. Dice DF steel body durability plus lunarian durability > buccaneer durability plus lunarian durability.
Not even the VC are free from Oda's mistakes.