to people who believe that Law saved the supernovas:
this post is to prove them wrong and to explain what happened.
look at the order the supernovas were standing in:
zoro wanted to sacrifice himself so that he can buy the supernovas some space and time to dodge, so he jumped forward before any of them were able to react
Kakai itself looks like a massive beam of light just tto make what happened next easier to understand
when the supernovas were running away they look like they barely avoided the attack
focus on the shadows direction and lighting position
- Kidd and Killer dodged to the right
- law shambles himself
- Luffy didn't move, the light is directly on his face
- Zoro still in blocking position despite hakai already passed through him (his cloths are being torn apart)
finally after the attack ended we see the supernovas checking on each other, but this time around they're standing in different order from before.
Law moved from his former location and he is now standing in the place where Luffy should be at.
extra info:
- zoro didn't thank law
- kid statement imply that they barely dodged in time
this post is to prove them wrong and to explain what happened.
look at the order the supernovas were standing in:

zoro wanted to sacrifice himself so that he can buy the supernovas some space and time to dodge, so he jumped forward before any of them were able to react

Kakai itself looks like a massive beam of light just tto make what happened next easier to understand

when the supernovas were running away they look like they barely avoided the attack
focus on the shadows direction and lighting position

- Kidd and Killer dodged to the right

- law shambles himself

- Luffy didn't move, the light is directly on his face

- Zoro still in blocking position despite hakai already passed through him (his cloths are being torn apart)

finally after the attack ended we see the supernovas checking on each other, but this time around they're standing in different order from before.
Law moved from his former location and he is now standing in the place where Luffy should be at.

extra info:
- zoro didn't thank law
- kid statement imply that they barely dodged in time