Oda is so washed he can’t even get bounties right. There is zero hype for Zoro and Sanji getting higher bounties if it’s lower than the guys they beat. At least in Luffy’s case he has massive help Vs Kaido and split the spoils three ways.
To be fair, Queen already had his main weapon destroyed by Zoro and his main virus neutralized by Chopper before the Cook started fighting him, so maybe the WG thought Cook cannot beat Queen with his full arsenal in a solo fight.
Who knows why about Zoro's bounty, though. Lolda just dropped every plotline he had after 1035, so this might have something to do with it.