There has been zero ramifications?? The permanent scar itself is a ramification, the fact that Kaido was hunched over shivering and breathing heavy and gushing blood was a ramification, that fact that he said one hit, just one hit from Zoro was "more than enough".
Yamato said Kaido is weakening, do you think that was just on the effort of Luffy, or do you think there may have been some,, "ramifications", that came from the attack Kaido had the biggest reaction to so far.