King and Queen weren’t recovered though, and they lost a cyborg arm, a wing, and their swords
1) King and Queen are Ancient Zoans. They have a rapid recovery time. After a whole week of inaction they will have recovered by now.
2) King losing a wing only affects his versatility at worst, not his strength. The vast majority of characters in OP don't have wings and it ain't a problem for them. Queen willingly fights with zero limbs with his serpent form and neither were especially restricted to their swords. Hell, Queen's sword was practically an ornament.
3) Those two had nearly the entire Beast Pirate crew present to assist them.
4) Being completely dominated this badly, at best even if any of the stuff you said did apply, they could only improve their chances from neg diff to low diff.
Face it. They got wiped and folded disrespectfully.