The suspicious thing is:
Days long fights never had a winner so far:
- Jack vs. Inu / Neko: 5 days
- Shichibukai Jinbe vs. Pre-Prime Ace: 5 days
- Roger vs Wb: 3 days
- Kaido vs Big mom: 1 day to 3 days
The only exception is Red Dog vs Aokjii, and another coincidence is, Jack won by cheating at the end 5th day, another interesting detail.
Another suspicious thing:
The Punk Hazard island is %50 ice, %50 magma. If Red Dog overpowered Aokiji in the 10th day, shouldn't be at least %60 magma %40 ice at the end of the final clash? Red Dog won, but the island is still %50 ice %50 magma, its weird.
We also know government sends their agent when they want someone win, Guernica interrupting Kaido's fight with Luffy. Did they pull something like that? And we also know Red Dog can cheat.
If that happened perhaps Aokjii should'v mentioned, but it wouldn't be right if Aokiji talked bad about the new fleet admiral that if he really cheated to win that fight, so perhaps thats why he isn't saying anything. Its possible but for now we need more info.