I tried 4x premade paladins on the PTR but was not overly impressed (I could kill more with my shaman), but then again that's nothing like live (everyone in full relentless, almost everyone is really good, and there's like 4-5 healers on anything you target). Real world 80 probably alot different... and I like that in your vid it makes it look somewhat fun for the 70-80 grind in PVP which is what I planned between questing.
I do a lot more terror with a paladin team then my shaman team who ahd better gear. Might be personal maybe.