Serious question.
Shanks keeps spouting all this talk about new, young pirates changing pirate history,
yet he keeps fighting their wars for them.
He calls Luffy a great pirate, yet still has to save his ass.
Why did he interfere? If Alliance is that powerful, why not just let them beat up Aramaki and that way Aramaki gets to see how strong
New Age of pirates is? Or that way New Age of pirates gets another accomplishment to their list?
Yet the only excuse we get from Shanks is
"they are exhausted". With that Shanks implies that
exhausted alliance can't handle Aramaki and Aramaki would have an
unfair advantage because he would be
"fighting dirty" because of that
(even though Greenbull is literally going
1 vs everyone???)
And mind you alliance had more than
1 week of rest time. They are certainly healthy enough to handle more than 1 Yonko. Luffy was getting up to fight Kaido after getting knocked out like 4 times just because of few minutes of rest time. I'm sure 1 week is more than enough for Luffy (and everyone else) to recover most of their strength.