Well that guy is right, many people doesnt like it, not because it is bad, but because their fav is not getting the hype and feats they want.
They all want some bloodlusted fights, with epic clashes and more beyond. But the reality is that Oda gives them different kind of roles and personalities. It is many their personality that decides how they will fight. Cracker hiding in his biscuit and getting one shotted makes sense. Queen depending more on his DF and tech and not Haki makes sense. Sanji getting a PU makes sense. Big Mom, while being strong lets her emotions overcome here and get beated makes sense.
In my opinion, the stroy is fine, I might now like some things, but as a whole, it is ok.