This war is really the worst written and most anticlimatic in One Piece history, with no real tension or sense of danger, being nothing compared to Marineford in terms of danger and epicness, with even the battle of Fishman Island and the wedding cake chase being more climatic and exciting than this raid.
You can´t compare MF with this lackluster, anticlimatic raid, the different is big asf.
That is like comparing Avengers first movie with infiniity war, such huge is the gap.
To be honest, I didn´t really even expect that the war in wano going to be above MF, since to beat MF saga is very hard, but I though that the war in Onigashima would be at least half good. But nope, it is really not good, waiting over 10years to get such a bad battle for Nami...