Yeah people trying to scale the hole's diameter to island level was retarded but it still penetrated most of Onigashima + ran deep into Wano. Still island level but the attack power is focused.
Brook isn't the Grim Reaper.
Law legit... No haki sliced Misery. I didn't wanna believe that Omori Karyudon was above Misery because it's retarded to think a right hand's finisher > a Yonko's even if Omori Karyudon has better AP hype but... Legit, Zoro put in mad effort with massive ACoC leaks and a high level move + fire cutting for Omori Karyudon. Looks like Law just used fire cutting to get rid of Misery.