I am really worried about yonkos overall strength after this. Kaido was praised as world strongest pirate and he got defeated by G5 Luffy who didnt need any outside help during his G5 round.
Kizaru did prove himself really good . For example Kaido was getting pummeled by gear 4 snakeman and he even had to use future sight just to fight against him . Kizaru on the other hand did not even need future sight or top tier durability like Kaido , he just used his close quarter combat skills to outperform g4 snakeman.
Also worst thing is Kizaru was casual , he literally send his clones to fought G5 Luffy he did not think of him as huge threat, he focused on someone else.
Strongest yonko Kaido fought G5 Luffy and lost , meanwhile casual Kizaru did the same , he fought G5 Luffy and actually outlasted him . Worst of all is that he did not need awakening or Acoc to do this.
As of now portrayal is that casual Kizaru > Kaido . Yet this same Kaido was supposed to be strongest pirate which means :
Casual Kizaru > Kaido > other yonkos ( not including Luffy ) .
Cant even imagine power creep when at final war Luffy faces off Akainu .