Oda would never treat Admirals like Yonko because Yonko are like Luffy and Admirals are like Zoro
Just like Luffy Yonko gets humiliated in a bar by fodders ,gluttonous, lose and gets captured dozens of times , getting bitten by a 8 year old dragon , have huge number of gag scenes , needing crew help to survive , crying whereas Admiral are like Zoro who are badasses , doesn't show much emotion , doesn't get trolled a lot , doesn't show much of their flaws
Oda treats Luffy badly or disrespects him a lot of times and For Zoro he avoids them
Maybe this is why most Admiral fans actually Zoro fans
But at the end Luffy is the main character , Zoro is an underlying whereas Luffy is the ruler , Luffy will end up as strongest Man / creature , Luffy will unite all races , Luffy is more important than Zoro to story, Luffy's highest moments will be far above Zoro's and of course Luffy will Always be stronger than Zoro