Its actually EASIER to diplomacy with a dragon when there is a large and clear gap in power. Heizui was a problem because we were so close in power at the time, and that is sending all kinds of threatening/challenging flags to himDoes anyone *really* wanna go the subservient route though? Seems like an awkward scene all around.
Edit: Then again showing humility, foreshadowing important traits for the actual negotiations with a foreign polity... it's not the worst idea.
Edit2: Still not a big fan.