Most ppl don't realize how dire the situation has become for SHs in just this chapter. Luffy in G5 (while fodderizing Kizaru) has not been able to do any permanent damage to Saturn meaning that in G5 at best Luffy can keep pushing & throwing Saturn away & before G5 timer runs out, Luffy will have to make it to the Thousand Sunny to survive & escape.
Once G5 timer runs out , its game over . Now add 4 more incoming Gorosei .
Yonko Luffy has more than enough proved that Admiral Kizaru is way below him.
But Luffy still not being able to do permanent damage to Saturn (whatever the reason might be) + Luffy's G5 timer will run out implies that Saturn alone will be too much for Luffy once his G5 timer goes off.
Add to that 4 more gorosei (possibly stronger than Saturn) incoming & again we don't know how to incur permanent damage on any of them while Luffy's G5 won't last for hours.
Getting VP's message out to the world & the Ancient Robot helping Luffy + Saturn punched into Kuma's entire life's pain bubble + Dogy & Broggy carry Punk Records & Luffy & SHs , all of them escaping on Thousand Sunny is going to be a monumental task. And this is the bare minimum needed to survive. Ofcourse Luffy isn't defeating the 5 Gorosei here.
Zoro , Sanji (all agendas aside), Jinbei will sense the demonic aura of 4 more incoming Gorosei & so will have to max out to get Luffy & everyone to escape successfully.