Mate, Kaido had to step in and save Jack's ass when Sulong Minks should offed him, just so Jack can have another go. That is literally plot.
Uhhh, Jack saved Kaido. They had already seen that the Scabbards could wound him, so the whole Sulong army in addition was looking bad. Even losing to the two rulers bought a bit of time.
Minks at Zou:
- The Beast numbers hardly dwindled and Jack had only begun getting tired before he overwhelmingly WON.
Queen:
- time and numbers are what decide a battle
- beats Luffy secondhand with Zombie plague
Hawkins, Beast Pirates:
- either you join or you stay on the run fighting
- Straw Hats have a 19% survival chance, "that person" has a 1% chance
Kinemon, scabbard leader who's wounding Kaido:
- doesn't want an all out fight even with ideal numbers
- figures he's going to die in the process
Kaido:
- upon seeing CoC, decides to break Luffy's will
The whole point of the story for years now is that the Beasts wear down and break opposition. Kaido, Hawkins... even Babanuki and weak ass Holdem have tagged enemies by exploiting victims when strength wouldn't do it, and there are plenty of hostages to go around still. The idea that there is no tension, that this is due to recent developments, is rubbish mate.