Or she has indeed decent trouble reacting to Niji, but she's just able to tank his shit without budging, which leaves Niji wide open after every attack and therefore she could just grab him. And/or perhaps he was even weakened/stunned by a homie before.
Had a very similar argument over ten times in BM vs debates.
Reacting =/= mainly being unfazed and therefore able to bulldoze. It's what BM did during the non awakened stage of her fight against Kid and Law.
Law always got the better out of her, but because his non awakened arsenal did jack, all those sequences led to Law getting fucked over instead of BM.
She just did not have to fear the consequences, still got hit a ton tho.
Very same principle with Kaido imo: "She could fight Kaido for three days, therefore TB speed cannot possibly be a problem for her"
or: non all out Kaido, being the blunt force attacker he is, really did speedblitz her a 100times over the course of those 3days, and TB speed normally is a very big problem for her, if the opponent can do serious damage with it, but non drunk Kaido just couldn't.
Long story short: If Kizaru can blitz Luffy, he can blitz BM. And in contrary to Niji and non awakened Law, he can make things work for him- I'm very sure of it. Really lacks only one all out move/attack and the deal is sealed.
