If Luffy STILL isn't using ACoC I don't think I would be ok with it Oda. I mean the first time with Lucci we said ok, The second time last chapter I still thought: ok, I guess that's what the plot needs. But if this chapter he still isn't using it, I don't care what the plot is about. At that point, it just doesn't make sense.
Luffy wants to defeat the Seraphim so fast that he even came around and is working with people who tried to kill him. But he is not willing to go all out and use Advanced conqueror's Haki? that just doesn't make sense.
Tho to be fair maybe he is using it and we'll see it in this chapter, So I might be talking too soon