Lmfao I think one Old Gen funeral was enough for that arc.
Two piece Marco >= Kizaru readers benefitted long enough from Oda keeping Marines in his backpocket for years.
Although it's not like the story needed to advance a step further for someone to realize Admirals sit at the apex of the One Piece verse. Marineford cemented it alone.
If that wasn't enough Oda made two explicit statements on Dressrosa. The fact that this debate still exists reflects poorly on this community, in particular the Yonkou fandom.