Rich coming from the most delusional user on this forum. I know you're going through a hard time, coping with all that has expired over the past week must've taken a toll on you.
BM hasn't used Adv CoC a single time which means it's not one of her strongest assest and doesn't mean much in a serious fight for her.
She showcased her entire arsenal and lost.
Listen, i don't want to humiliate you like this as it gets apparent that your knowledge of One piece isn't the best given how you're creating your own versions constantly....but Kizaru was absolutely in Shanks's reach as proven in this chapter.
Akainu is fighting on the right and exactly on the right ship next to him you see Kizaru on top shooting beams at Law's submarine: