You can't understand simple difference of escape arc and rescue arc.
Rescue arc:
Go for the rescue
Managed to rescue
Then escape
Another example:
Got for the rescue
Does the rescue
Escape
Now let's see how it works with an escape arc:
Find a new island and explore
Kizaru arrives scalling up the situation to be impossible to handle
Had someone to help them escaping as a miracle
Now let's analyze Egghead
Find a new island and explore
Kizaru arrives scalling up the situation to be impossible to handle
Had someone to help them escaping as a miracle
Here is the part we are not sure yet but we have some canditates like Ancient Robot
Kuma that already saved them previously
And now even the Giants
With more players possibly coming like Shanks. My bet is that Shanks left Elbaf before the news of Luffy. That's why Giants made it there but Shanks not.