Doflamingo does not scale to anyone here.
He held back Jozu
This was never an Attack Potency feat. When was holding people back Attack Potency? Not including the fact that prior to that feat, Jozu was charging to someone else.
It's not inconsistent at all
This scaling leads to Luffy during Dressrosa being comparable (if not superior to) the Admirals, which is a huge issue and what is on the current profiles.
We will find out his scaling later, maybe he could scale to Ace's
passive feat, maybe something else. The point is that he does not scale to the God-High tiers, especially since he matched Crocodile who got absolutely bodied by Jozu.