Dragonite: 11 Ban, 60 Do Not Ban, 3 Abstain = 15.49% Ban
I think that speaks volumes.
No, he's not broken. The main selling point of Dragonite is Multi Scale, and there are various ways of keeping that in check. I will say that the most dangerous of the sets would have to be the LumDD set. Forget Bulky DD, with the Lum Berry, you can't even cripple it with status.