The spirit of the game and the intended gameplay of vanilla, where you pay horde priests to mind control your faction NPCs so you can kill them and exploit more world buffs than intended while being summoned to booty bay, dire maul and felwood by warlock alts to load up on buffs that give you twice the benefit of full Naxxramas gear so you can clear raids in 20 minutes.
While horde priests try to resurrect and dispel your buffs before you zone in.
Yes that sounds like the intended gameplay of vanilla to me.